using System;
using System.Collections;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Security.Cryptography;
using System.Text;
using System.Text.RegularExpressions;
using System.Web;

namespace Mtxfw.Utility
{
    public class Utils
    {
        #region MD5加密
        public static string MD5(string pwd)
        {
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] data = System.Text.Encoding.Default.GetBytes(pwd);
            byte[] md5data = md5.ComputeHash(data);
            md5.Clear();
            string str = "";
            for (int i = 0; i < md5data.Length; i++)
            {
                str += md5data[i].ToString("x").PadLeft(2, '0');

            }
            return str;
        }
        #endregion

        #region 对象转换处理
        /// <summary>
        /// 判断对象是否为Int32类型的数字
        /// </summary>
        /// <param name="Expression"></param>
        /// <returns></returns>
        public static bool IsNumeric(object expression)
        {
            if (expression != null)
                return IsNumeric(expression.ToString());

            return false;

        }

        /// <summary>
        /// 判断对象是否为Int32类型的数字
        /// </summary>
        /// <param name="Expression"></param>
        /// <returns></returns>
        public static bool IsNumeric(string expression)
        {
            if (expression != null)
            {
                string str = expression;
                if (str.Length > 0 && str.Length <= 11 && Regex.IsMatch(str, @"^[-]?[0-9]*[.]?[0-9]*$"))
                {
                    if ((str.Length < 10) || (str.Length == 10 && str[0] == '1') || (str.Length == 11 && str[0] == '-' && str[1] == '1'))
                        return true;
                }
            }
            return false;
        }
        /// <summary>
        /// 截取字符串长度，超出部分使用后缀suffix代替，比如abcdevfddd取前3位，后面使用...代替
        /// </summary>
        /// <param name="orginStr"></param>
        /// <param name="length"></param>
        /// <param name="suffix"></param>
        /// <returns></returns>
        public static string SubStrAddSuffix(string orginStr, int length, string suffix)
        {
            string ret = orginStr;
            if (orginStr.Length > length)
            {
                ret = orginStr.Substring(0, length) + suffix;
            }
            return ret;
        }
        /// <summary>
        /// 是否为Double类型
        /// </summary>
        /// <param name="expression"></param>
        /// <returns></returns>
        public static bool IsDouble(object expression)
        {
            if (expression != null)
                return Regex.IsMatch(expression.ToString(), @"^([0-9])[0-9]*(\.\w*)?$");

            return false;
        }

        /// <summary>
        /// 检测是否符合email格式
        /// </summary>
        /// <param name="strEmail">要判断的email字符串</param>
        /// <returns>判断结果</returns>
        public static bool IsValidEmail(string strEmail)
        {
            return Regex.IsMatch(strEmail, @"^[\w\.]+([-]\w+)*@[A-Za-z0-9-_]+[\.][A-Za-z0-9-_]");
        }
        public static bool IsValidDoEmail(string strEmail)
        {
            return Regex.IsMatch(strEmail, @"^@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
        }

        /// <summary>
        /// 检测是否是正确的Url
        /// </summary>
        /// <param name="strUrl">要验证的Url</param>
        /// <returns>判断结果</returns>
        public static bool IsURL(string strUrl)
        {
            return Regex.IsMatch(strUrl, @"^(http|https)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&%\$\-]+)*@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{1,10}))(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\?\'\\\+&%\$#\=~_\-]+))*$");
        }

        /// <summary>
        /// 将字符串转换为数组
        /// </summary>
        /// <param name="str">字符串</param>
        /// <returns>字符串数组</returns>
        public static string[] GetStrArray(string str)
        {
            return str.Split(new char[',']);
        }

        /// <summary>
        /// 将数组转换为字符串
        /// </summary>
        /// <param name="list">List</param>
        /// <param name="speater">分隔符</param>
        /// <returns>String</returns>
        public static string GetArrayStr(List<string> list, string speater)
        {
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < list.Count; i++)
            {
                if (i == list.Count - 1)
                {
                    sb.Append(list[i]);
                }
                else
                {
                    sb.Append(list[i]);
                    sb.Append(speater);
                }
            }
            return sb.ToString();
        }

        /// <summary>
        /// object型转换为bool型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的bool类型结果</returns>
        public static bool StrToBool(object expression, bool defValue)
        {
            if (expression != null)
                return StrToBool(expression, defValue);

            return defValue;
        }

        /// <summary>
        /// string型转换为bool型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的bool类型结果</returns>
        public static bool StrToBool(string expression, bool defValue)
        {
            if (expression != null)
            {
                if (string.Compare(expression, "true", true) == 0)
                    return true;
                else if (string.Compare(expression, "false", true) == 0)
                    return false;
            }
            return defValue;
        }

        /// <summary>
        /// 将对象转换为Int32类型
        /// </summary>
        /// <param name="expression">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static int ObjToInt(object expression, int defValue)
        {
            if (expression != null)
                return StrToInt(expression.ToString(), defValue);

            return defValue;
        }

        /// <summary>
        /// 将字符串转换为Int32类型
        /// </summary>
        /// <param name="expression">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static int StrToInt(string expression, int defValue)
        {
            if (string.IsNullOrEmpty(expression) || expression.Trim().Length >= 11 || !Regex.IsMatch(expression.Trim(), @"^([-]|[0-9])[0-9]*(\.\w*)?$"))
                return defValue;

            int rv;
            if (Int32.TryParse(expression, out rv))
                return rv;

            return Convert.ToInt32(StrToFloat(expression, defValue));
        }

        /// <summary>
        /// Object型转换为decimal型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的decimal类型结果</returns>
        public static decimal ObjToDecimal(object expression, decimal defValue)
        {
            if (expression != null)
                return StrToDecimal(expression.ToString(), defValue);

            return defValue;
        }

        /// <summary>
        /// string型转换为decimal型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的decimal类型结果</returns>
        public static decimal StrToDecimal(string expression, decimal defValue)
        {
            if ((expression == null) || (expression.Length > 10))
                return defValue;

            decimal intValue = defValue;
            if (expression != null)
            {
                bool IsDecimal = Regex.IsMatch(expression, @"^([-]|[0-9])[0-9]*(\.\w*)?$");
                if (IsDecimal)
                    decimal.TryParse(expression, out intValue);
            }
            return intValue;
        }

        /// <summary>
        /// Object型转换为float型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static float ObjToFloat(object expression, float defValue)
        {
            if (expression != null)
                return StrToFloat(expression.ToString(), defValue);

            return defValue;
        }

        /// <summary>
        /// string型转换为float型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static float StrToFloat(string expression, float defValue)
        {
            if ((expression == null) || (expression.Length > 10))
                return defValue;

            float intValue = defValue;
            if (expression != null)
            {
                bool IsFloat = Regex.IsMatch(expression, @"^([-]|[0-9])[0-9]*(\.\w*)?$");
                if (IsFloat)
                    float.TryParse(expression, out intValue);
            }
            return intValue;
        }

        /// <summary>
        /// 将对象转换为日期时间类型
        /// </summary>
        /// <param name="str">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static DateTime StrToDateTime(string str, DateTime defValue)
        {
            if (!string.IsNullOrEmpty(str))
            {
                DateTime dateTime;
                if (DateTime.TryParse(str, out dateTime))
                    return dateTime;
            }
            return defValue;
        }

        /// <summary>
        /// 将对象转换为日期时间类型
        /// </summary>
        /// <param name="str">要转换的字符串</param>
        /// <returns>转换后的int类型结果</returns>
        public static DateTime StrToDateTime(string str)
        {
            return StrToDateTime(str, DateTime.Now);
        }

        /// <summary>
        /// 将对象转换为日期时间类型
        /// </summary>
        /// <param name="obj">要转换的对象</param>
        /// <returns>转换后的int类型结果</returns>
        public static DateTime ObjectToDateTime(object obj)
        {
            return StrToDateTime(obj.ToString());
        }

        /// <summary>
        /// 将对象转换为日期时间类型
        /// </summary>
        /// <param name="obj">要转换的对象</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static DateTime ObjectToDateTime(object obj, DateTime defValue)
        {
            return StrToDateTime(obj.ToString(), defValue);
        }

        /// <summary>
        /// 将对象转换为字符串
        /// </summary>
        /// <param name="obj">要转换的对象</param>
        /// <returns>转换后的string类型结果</returns>
        public static string ObjectToStr(object obj)
        {
            if (obj == null)
                return "";
            return obj.ToString().Trim();
        }

        /// <summary>
        /// 将对象转换为Int类型
        /// </summary>
        /// <param name="o"></param>
        /// <returns></returns>
        public static int ObjToInt(object obj)
        {
            if (isNumber(obj))
            {
                return int.Parse(obj.ToString());
            }
            else
            {
                return 0;
            }
        }
        /// <summary>
        /// 判断对象是否可以转成int型
        /// </summary>
        /// <param name="o"></param>
        /// <returns></returns>
        public static bool isNumber(object o)
        {
            int tmpInt;
            if (o == null)
            {
                return false;
            }
            if (o.ToString().Trim().Length == 0)
            {
                return false;
            }
            if (!int.TryParse(o.ToString(), out tmpInt))
            {
                return false;
            }
            else
            {
                return true;
            }
        }
        #endregion

        #region 分割字符串
        /// <summary>
        /// 分割字符串
        /// </summary>
        public static string[] SplitString(string strContent, string strSplit)
        {
            if (!string.IsNullOrEmpty(strContent))
            {
                if (strContent.IndexOf(strSplit, StringComparison.Ordinal) < 0)
                    return new string[] { strContent };

                return Regex.Split(strContent, Regex.Escape(strSplit), RegexOptions.IgnoreCase);
            }
            else
                return new string[0] { };
        }

        /// <summary>
        /// 分割字符串
        /// </summary>
        /// <returns></returns>
        public static string[] SplitString(string strContent, string strSplit, int count)
        {
            string[] result = new string[count];
            string[] splited = SplitString(strContent, strSplit);

            for (int i = 0; i < count; i++)
            {
                if (i < splited.Length)
                    result[i] = splited[i];
                else
                    result[i] = string.Empty;
            }

            return result;
        }
        #endregion

        #region 删除最后结尾的一个逗号
        /// <summary>
        /// 删除最后结尾的一个逗号
        /// </summary>
        public static string DelLastComma(string str)
        {
            if (str.Length < 1)
            {
                return "";
            }
            return str.Substring(0, str.LastIndexOf(","));
        }
        #endregion

        #region 删除开始的指定字符后的字符
        /// <summary>
        /// 删除开始和结尾的指定字符后的字符
        /// </summary>
        public static string DelStartChar(string str, char strchar)
        {
            if (string.IsNullOrEmpty(str))
                return "";
            if (str.LastIndexOf(strchar) >= 0 && str.IndexOf(strchar) == 0)
            {
                return str.Trim(strchar);
            }
            str = DelLastChar(str, strchar.ToString());
            return str;
        }
        #endregion

        #region 删除最后结尾的指定字符后的字符
        /// <summary>
        /// 删除最后结尾的指定字符后的字符
        /// </summary>
        public static string DelLastChar(string str, string strchar)
        {
            if (string.IsNullOrEmpty(str))
                return "";
            if (str.LastIndexOf(strchar) >= 0 && str.LastIndexOf(strchar) == str.Length - 1)
            {
                return str.Substring(0, str.LastIndexOf(strchar));
            }
            return str;
        }
        #endregion

        #region 删除开始和结尾的指定字符后的字符
        /// <summary>
        /// 删除开始和结尾的指定字符后的字符
        /// </summary>
        public static string DelStartLastChar(string str, char strchar)
        {
            if (string.IsNullOrEmpty(str))
                return "";
            if (str.LastIndexOf(strchar) >= 0 && str.LastIndexOf(strchar) == str.Length - 1 && str.IndexOf(strchar) == 0)
            {
                return str.Trim(strchar);
            }
            str = DelLastChar(str, strchar.ToString());
            return str;
        }

        ///<summary>
        /// 截前后字符(串)
        ///</summary>
        ///<param name="val">原字符串</param>
        ///<param name="str">要截掉的字符串</param>
        ///<param name="all">是否贪婪</param>
        ///<returns></returns>
        public static string DelStartLastString(string val, string str, bool all = false)
        {
            return Regex.Replace(val, @"(^(" + str + ")" + (all ? "*" : "") + "|(" + str + ")" + (all ? "*" : "") + "$)", "");
        }
        #endregion

        #region 添加开始和结尾的指定字符后的字符
        /// <summary>
        /// 添加开始和结尾的指定字符后的字符
        /// </summary>
        /// <param name="str">字符串</param>
        /// <param name="strchar">分隔符</param>
        /// <returns></returns>
        public static string AddStartLastChar(string str, string strchar)
        {
            if (string.IsNullOrEmpty(str))
                return "";
            if (str.IndexOf(strchar) != 0) str = strchar + str;
            if (str.LastIndexOf(strchar) != str.Length - 1) str = str + strchar;
            return str;
        }
        #endregion

        #region 生成指定长度的字符串
        /// <summary>
        /// 生成指定长度的字符串,即生成strLong个str字符串
        /// </summary>
        /// <param name="strLong">生成的长度</param>
        /// <param name="str">以str生成字符串</param>
        /// <returns></returns>
        public static string StringOfChar(int strLong, string str)
        {
            string ReturnStr = "";
            for (int i = 0; i < strLong; i++)
            {
                ReturnStr += str;
            }

            return ReturnStr;
        }
        #endregion

        #region 生成日期随机码
        /// <summary>
        /// 生成日期随机码
        /// </summary>
        /// <returns></returns>
        public static string GetRamCode(bool Sleep = false)
        {
            #region
            if (Sleep) System.Threading.Thread.Sleep(3);
            return DateTime.Now.ToString("yyyyMMddHHmmssffff");
            #endregion
        }
        #endregion

        #region 生成随机字母或数字
        /// <summary>
        /// 生成随机数字
        /// </summary>
        /// <param name="length">生成长度</param>
        /// <returns></returns>
        public static string Number(int Length)
        {

            return Number(Length, false);
        }

        /// <summary>
        /// 生成随机数字
        /// </summary>
        /// <param name="Length">生成长度</param>
        /// <param name="Sleep">是否要在生成前将当前线程阻止以避免重复</param>
        /// <returns></returns>
        public static string Number(int Length, bool Sleep)
        {
            if (Sleep)
                System.Threading.Thread.Sleep(3);
            string result = "";
            System.Random random = new Random();
            for (int i = 0; i < Length; i++)
            {
                result += random.Next(10).ToString();
            }
            return result;
        }
        /// <summary>
        /// 生成随机字母字符串(数字字母混和)
        /// </summary>
        /// <param name="codeCount">待生成的位数</param>
        public static string GetCheckCode(int codeCount)
        {
            string str = string.Empty;
            int rep = 0;
            long num2 = DateTime.Now.Ticks + rep;
            rep++;
            Random random = new Random(((int)(((ulong)num2) & 0xffffffffL)) | ((int)(num2 >> rep)));
            for (int i = 0; i < codeCount; i++)
            {
                char ch;
                int num = random.Next();
                if ((num % 2) == 0)
                {
                    ch = (char)(0x30 + ((ushort)(num % 10)));
                }
                else
                {
                    ch = (char)(0x41 + ((ushort)(num % 0x1a)));
                }
                str = str + ch.ToString();
            }
            return str;
        }
        /// <summary>
        /// 根据日期和随机码生成订单号
        /// </summary>
        /// <returns></returns>
        public static string GetOrderNumber()
        {
            string num = DateTime.Now.ToString("yyMMddHHmmssfff");//yyyyMMddHHmmssms
            return num + Number(2, true).ToString();
        }
        private static int Next(int numSeeds, int length)
        {
            byte[] buffer = new byte[length];
            System.Security.Cryptography.RNGCryptoServiceProvider Gen = new System.Security.Cryptography.RNGCryptoServiceProvider();
            Gen.GetBytes(buffer);
            uint randomResult = 0x0;//这里用uint作为生成的随机数  
            for (int i = 0; i < length; i++)
            {
                randomResult |= ((uint)buffer[i] << ((length - 1 - i) * 8));
            }
            return (int)(randomResult % numSeeds);
        }
        #endregion

        #region 暂无
        public static string GetObjectContent(object obj)
        {
            string result = String.Empty;
            if (obj != null)
            {
                string str = Utils.ObjectToStr(obj);
                if (!string.IsNullOrEmpty(str))
                {
                    result = str;
                }
                else
                {
                    result = "<p style='color:#8080809c;font-style: italic;'><b>暂无</b></p>";
                }
            }
            else
            {
                result = "<p style='color:#8080809c;font-style: italic;'><b>暂无</b></p>";
            }
            return result;
        }
        #endregion

        #region 截取字符长度
        /// <summary>
        /// 截取字符长度
        /// </summary>
        /// <param name="inputString">字符</param>
        /// <param name="len">长度</param>
        /// <returns></returns>
        public static string CutString(string inputString, int len, string str = "…")
        {
            if (string.IsNullOrEmpty(inputString)) return "";
            inputString = DropHTML(inputString);
            ASCIIEncoding ascii = new ASCIIEncoding();
            int tempLen = 0;
            string tempString = "";
            byte[] s = ascii.GetBytes(inputString);
            for (int i = 0; i < s.Length; i++)
            {
                if ((int)s[i] == 63)
                {
                    tempLen += 2;
                }
                else
                {
                    tempLen += 1;
                }

                try
                {
                    tempString += inputString.Substring(i, 1);
                }
                catch
                {
                    break;
                }

                if (tempLen > len) break;
            }
            //如果截过则加上半个省略号 
            byte[] mybyte = Encoding.Default.GetBytes(inputString);
            if (mybyte.Length > len) tempString += str;
            return tempString;
        }

        /// <summary>
        /// 裁减字符串 - 优化版 liwh - 20160523
        /// </summary>
        /// <param name="originalText">被裁减字符串</param>
        /// <param name="bytesAfterCut">需保留的字节数</param>
        /// <param name="tail">截取后的尾巴 如：。。。</param>
        /// <returns></returns>
        public static string GetOptimizedText(string originalText, int bytesAfterCut, string tail = "")
        {
            string optimizedText = originalText;
            byte[] val = Encoding.Default.GetBytes(originalText);
            if (val.Length > bytesAfterCut)
            {
                int left = bytesAfterCut / 2;
                int right = bytesAfterCut;
                left = left > originalText.Length ? originalText.Length : left;
                right = right > originalText.Length ? originalText.Length : right;
                while (left < right - 1)
                {
                    int mid = (left + right) / 2;
                    if (Encoding.Default.GetBytes(originalText.Substring(0, mid)).Length >
                        bytesAfterCut)
                    {
                        right = mid;
                    }
                    else
                    {
                        left = mid;
                    }
                }
                byte[] rightVal = Encoding.Default.GetBytes(originalText.Substring(0, right));
                if (rightVal.Length == bytesAfterCut)
                {
                    optimizedText = originalText.Substring(0, right) + tail;
                }
                else
                {
                    optimizedText = originalText.Substring(0, left) + tail;
                }
            }
            return optimizedText;
        }
        #endregion

        #region 清除HTML标记
        public static string DropHTML(string Htmlstring)
        {
            if (string.IsNullOrEmpty(Htmlstring)) return "";
            //删除脚本  
            Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);
            //删除HTML  
            Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"([\r\n])[\s]+", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase);

            Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase);
            Htmlstring.Replace("<", "");
            Htmlstring.Replace(">", "");
            Htmlstring.Replace("\r\n", "");
            Htmlstring.Replace("&emsp;", "");
            Htmlstring = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();
            return Htmlstring;
        }
        #endregion

        #region 清除HTML标记且返回相应的长度
        public static string DropHTML(string Htmlstring, int strLen)
        {
            return CutString(DropHTML(Htmlstring), strLen);
        }
        #endregion

        #region TXT代码转换成HTML格式
        /// <summary>
        /// 字符串字符处理
        /// </summary>
        /// <param name="chr">等待处理的字符串</param>
        /// <returns>处理后的字符串</returns>
        /// //把TXT代码转换成HTML格式
        public static String ToHtml(string Input)
        {
            StringBuilder sb = new StringBuilder(Input);
            sb.Replace("'", "&apos;");
            sb.Replace("&", "&amp;");
            sb.Replace("<", "&lt;");
            sb.Replace(">", "&gt;");
            sb.Replace("\r\n", "<br />");
            sb.Replace("\n", "<br />");
            sb.Replace("\t", " ");
            //sb.Replace(" ", "&nbsp;");
            return sb.ToString();
        }
        #endregion

        #region HTML代码转换成TXT格式
        /// <summary>
        /// 字符串字符处理
        /// </summary>
        /// <param name="chr">等待处理的字符串</param>
        /// <returns>处理后的字符串</returns>
        /// //把HTML代码转换成TXT格式
        public static String ToTxt(String Input)
        {
            StringBuilder sb = new StringBuilder(Input);
            sb.Replace("&nbsp;", " ");
            sb.Replace("<br>", "\r\n");
            sb.Replace("<br>", "\n");
            sb.Replace("<br />", "\n");
            sb.Replace("<br />", "\r\n");
            sb.Replace("&lt;", "<");
            sb.Replace("&gt;", ">");
            sb.Replace("&amp;", "&");
            return sb.ToString();
        }
        #endregion

        #region 检测是否有Sql危险字符
        /// <summary>
        /// 检测是否有Sql危险字符
        /// </summary>
        /// <param name="str">要判断字符串</param>
        /// <returns>判断结果</returns>
        public static bool IsSafeSqlString(string str)
        {
            return !Regex.IsMatch(str, @"[-|;|,|\/|\(|\)|\[|\]|\}|\{|%|@|\*|!|\']");
        }

        /// <summary>
        /// 检查危险字符
        /// </summary>
        /// <param name="Input"></param>
        /// <returns></returns>
        public static string Filter(string sInput)
        {
            if (sInput == null || sInput == "")
                return null;
            string sInput1 = sInput.ToLower();
            string output = sInput;
            string pattern = @"*|and|exec|insert|select|delete|update|count|master|truncate|declare|char(|mid(|chr(|'";
            if (Regex.Match(sInput1, Regex.Escape(pattern), RegexOptions.Compiled | RegexOptions.IgnoreCase).Success)
            {
                throw new Exception("字符串中含有非法字符!");
            }
            else
            {
                output = output.Replace("'", "''");
            }
            return output;
        }

        /// <summary> 
        /// 检查过滤设定的危险字符
        /// </summary> 
        /// <param name="InText">要过滤的字符串 </param> 
        /// <returns>如果参数存在不安全字符，则返回true </returns> 
        public static bool SqlFilter(string word, string InText)
        {
            if (InText == null)
                return false;
            foreach (string i in word.Split('|'))
            {
                if ((InText.ToLower().IndexOf(i + " ") > -1) || (InText.ToLower().IndexOf(" " + i) > -1))
                {
                    return true;
                }
            }
            return false;
        }
        #endregion

        #region 过滤特殊字符
        /// <summary>
        /// 过滤特殊字符
        /// </summary>
        /// <param name="Input"></param>
        /// <returns></returns>
        public static string Htmls(string Input)
        {
            if (Input != string.Empty && Input != null)
            {
                string ihtml = Input.ToLower();
                ihtml = ihtml.Replace("<script", "&lt;script");
                ihtml = ihtml.Replace("script>", "script&gt;");
                ihtml = ihtml.Replace("<%", "&lt;%");
                ihtml = ihtml.Replace("%>", "%&gt;");
                ihtml = ihtml.Replace("<$", "&lt;$");
                ihtml = ihtml.Replace("$>", "$&gt;");
                return ihtml;
            }
            else
            {
                return string.Empty;
            }
        }
        #endregion

        #region 检查是否为IP地址
        /// <summary>
        /// 是否为ip
        /// </summary>
        /// <param name="ip"></param>
        /// <returns></returns>
        public static bool IsIP(string ip)
        {
            return Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$");
        }
        #endregion

        #region 获得配置文件节点XML文件的绝对路径
        public static string GetXmlMapPath(string filepath)
        {
            return GetMapPath(filepath);
        }
        #endregion

        #region 获得当前绝对路径
        /// <summary>
        /// 获得当前绝对路径
        /// </summary>
        /// <param name="strPath">指定的路径</param>
        /// <returns>绝对路径</returns>
        public static string GetMapPath(string strPath)
        {
            if (strPath.ToLower().StartsWith("http://"))
            {
                return strPath;
            }
            if (HttpContext.Current != null)
            {
                return HttpContext.Current.Server.MapPath(strPath);
            }
            else //非web程序引用
            {
                strPath = strPath.Replace("/", "\\");
                if (strPath.StartsWith("\\"))
                {
                    strPath = strPath.Substring(strPath.IndexOf('\\', 1)).TrimStart('\\');
                }
                return System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, strPath);
            }
        }
        #endregion

        #region 读取或写入cookie
        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="strValue">值</param>
        public static void WriteCookie(string strName, string strValue)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie.Value = UrlEncode(strValue);
            HttpContext.Current.Response.AppendCookie(cookie);
        }

        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="strValue">值</param>
        public static void WriteCookie(string strName, string key, string strValue)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie[key] = UrlEncode(strValue);
            HttpContext.Current.Response.AppendCookie(cookie);
        }

        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="strValue">值</param>
        public static void WriteCookie(string strName, string key, string strValue, int expires)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
            if (cookie == null)
            {
                cookie = new HttpCookie(strName);
            }
            cookie[key] = UrlEncode(strValue);
            cookie.Expires = DateTime.Now.AddMinutes(expires);
            HttpContext.Current.Response.AppendCookie(cookie);
        }

        /// <summary>
        /// 写cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <param name="strValue">值</param>
        /// <param name="strValue">过期时间(分钟)</param>
        public static void WriteCookie(string strName, string strValue, int expires)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[strName] ?? new HttpCookie(strName);
            cookie.Value = UrlEncode(strValue);
            cookie.Expires = DateTime.Now.AddMinutes(expires);
            HttpContext.Current.Response.AppendCookie(cookie);
        }

        /// <summary>
        /// 读cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <returns>cookie值</returns>
        public static string GetCookie(string strName)
        {
            if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null)
                return UrlDecode(HttpContext.Current.Request.Cookies[strName].Value.ToString());
            return "";
        }

        /// <summary>
        /// 读cookie值
        /// </summary>
        /// <param name="strName">名称</param>
        /// <returns>cookie值</returns>
        public static string GetCookie(string strName, string key)
        {
            if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null && HttpContext.Current.Request.Cookies[strName][key] != null)
                return UrlDecode(HttpContext.Current.Request.Cookies[strName][key].ToString());

            return "";
        }
        #endregion

        #region 替换指定的字符串
        /// <summary>
        /// 替换指定的字符串
        /// </summary>
        /// <param name="originalStr">原字符串</param>
        /// <param name="oldStr">旧字符串</param>
        /// <param name="newStr">新字符串</param>
        /// <returns></returns>
        public static string ReplaceStr(string originalStr, string oldStr, string newStr)
        {
            if (string.IsNullOrEmpty(oldStr))
            {
                return "";
            }
            return originalStr.Replace(oldStr, newStr);
        }
        #endregion

        #region 显示分页
        /// <summary>
        /// 返回分页页码
        /// </summary>
        /// <param name="pageSize">页面大小</param>
        /// <param name="pageIndex">当前页</param>
        /// <param name="totalCount">总记录数</param>
        /// <param name="linkUrl">链接地址，__id__代表页码</param>
        /// <param name="centSize">中间页码数量</param>
        /// <returns></returns>
        public static string OutPageList(int pageSize, int pageIndex, int totalCount, string linkUrl, int centSize)
        {
            //计算页数
            if (totalCount < 1 || pageSize < 1)
            {
                return "";
            }
            int pageCount = totalCount / pageSize;
            if (pageCount < 1)
            {
                return "";
            }
            if (totalCount % pageSize > 0)
            {
                pageCount += 1;
            }
            if (pageCount <= 1)
            {
                return "";
            }
            StringBuilder pageStr = new StringBuilder();
            string pageId = "__id__";
            string firstBtn = "<a href=\"" + ReplaceStr(linkUrl, pageId, (pageIndex - 1).ToString()) + "\">«上一页</a>";
            string lastBtn = "<a href=\"" + ReplaceStr(linkUrl, pageId, (pageIndex + 1).ToString()) + "\">下一页»</a>";
            string firstStr = "<a href=\"" + ReplaceStr(linkUrl, pageId, "1") + "\">1</a>";
            string lastStr = "<a href=\"" + ReplaceStr(linkUrl, pageId, pageCount.ToString()) + "\">" + pageCount.ToString() + "</a>";

            if (pageIndex <= 1)
            {
                firstBtn = "<span class=\"disabled\">«上一页</span>";
            }
            if (pageIndex >= pageCount)
            {
                lastBtn = "<span class=\"disabled\">下一页»</span>";
            }
            if (pageIndex == 1)
            {
                firstStr = "<span class=\"current\">1</span>";
            }
            if (pageIndex == pageCount)
            {
                lastStr = "<span class=\"current\">" + pageCount.ToString() + "</span>";
            }
            int firstNum = pageIndex - (centSize / 2); //中间开始的页码
            if (pageIndex < centSize)
                firstNum = 2;
            int lastNum = pageIndex + centSize - ((centSize / 2) + 1); //中间结束的页码
            if (lastNum >= pageCount)
                lastNum = pageCount - 1;
            pageStr.Append("<span>共" + totalCount + "记录</span>");
            pageStr.Append(firstBtn + firstStr);
            if (pageIndex >= centSize)
            {
                pageStr.Append("<span>...</span>\n");
            }
            for (int i = firstNum; i <= lastNum; i++)
            {
                if (i == pageIndex)
                {
                    pageStr.Append("<span class=\"current\">" + i + "</span>");
                }
                else
                {
                    pageStr.Append("<a href=\"" + ReplaceStr(linkUrl, pageId, i.ToString()) + "\">" + i + "</a>");
                }
            }
            if (pageCount - pageIndex > centSize - ((centSize / 2)))
            {
                pageStr.Append("<span>...</span>");
            }
            pageStr.Append(lastStr + lastBtn);
            return pageStr.ToString();
        }
        #endregion

        #region 显示ajax记录分页
        /// <summary>
        /// 返回ajax分页页码
        /// </summary>
        /// <param name="pageSize">页面大小</param>
        /// <param name="pageIndex">当前页</param>
        /// <param name="totalCount">总记录数</param>
        /// <param name="pageCount">返回分页数</param>
        /// <returns></returns>
        public static string OutPageList(int pageSize, int pageIndex, int totalCount, out int pageCount, int centSize = 8)
        {
            //计算页数
            pageCount = totalCount / pageSize;
            if (totalCount < 1 || pageSize < 1)
            {
                return "";
            }
            if (pageCount < 1)
            {
                return "";
            }
            if (totalCount % pageSize > 0)
            {
                pageCount += 1;
            }
            if (pageCount <= 1)
            {
                return "";
            }
            StringBuilder pageStr = new StringBuilder();
            string firstBtn = "<a data-page='" + (pageIndex - 1).ToString() + "'>&lt;&lt;上一页</a>";
            string lastBtn = "<a data-page='" + (pageIndex + 1).ToString() + "'>下一页&gt;&gt;</a>";
            string firstStr = "<a data-page='1'>1</a>";
            string lastStr = "<a data-page='" + pageCount.ToString() + "'>" + pageCount.ToString() + "</a>";

            if (pageIndex <= 1)
            {
                firstBtn = "<span class='disabled'>&lt;&lt;上一页</span>";
            }
            if (pageIndex >= pageCount)
            {
                lastBtn = "<span class='disabled'>下一页&gt;&gt;</span>";
            }
            if (pageIndex == 1)
            {
                firstStr = "<span class='current'>1</span>";
            }
            if (pageIndex == pageCount)
            {
                lastStr = "<span class='current'>" + pageCount.ToString() + "</span>";
            }
            pageStr.Append("<div>");
            int firstNum = pageIndex - (centSize / 2); //中间开始的页码
            if (pageIndex < centSize)
                firstNum = 2;
            int lastNum = pageIndex + centSize - ((centSize / 2) + 1); //中间结束的页码
            if (lastNum >= pageCount)
                lastNum = pageCount - 1;
            pageStr.Append("<span>共" + totalCount + "记录</span>");
            pageStr.Append(firstBtn + firstStr);
            if (pageIndex >= centSize)
            {
                pageStr.Append("<span>...</span>");
            }
            for (int i = firstNum; i <= lastNum; i++)
            {
                if (i == pageIndex)
                {
                    pageStr.Append("<span class='current'>" + i + "</span>");
                }
                else
                {
                    pageStr.Append("<a data-page='" + i.ToString() + "'>" + i + "</a>");
                }
            }
            if (pageCount - pageIndex > centSize - ((centSize / 2)))
            {
                pageStr.Append("<span>...</span>");
            }
            pageStr.Append(lastStr + lastBtn);
            pageStr.Append("</div>");
            return pageStr.ToString();
        }
        #endregion

        #region URL处理
        /// <summary>
        /// URL字符编码
        /// </summary>
        public static string UrlEncode(string str)
        {
            if (string.IsNullOrEmpty(str))
            {
                return "";
            }
            str = str.Replace("'", "");
            return HttpContext.Current.Server.UrlEncode(str);
        }

        /// <summary>
        /// URL字符解码
        /// </summary>
        public static string UrlDecode(string str)
        {
            if (string.IsNullOrEmpty(str))
            {
                return "";
            }
            return HttpContext.Current.Server.UrlDecode(str);
        }

        /// <summary>
        /// 组合URL参数
        /// </summary>
        /// <param name="_url">页面地址</param>
        /// <param name="_keys">参数名称</param>
        /// <param name="_values">参数值</param>
        /// <returns>String</returns>
        public static string CombUrlTxt(string _url, string _keys, params string[] _values)
        {
            StringBuilder urlParams = new StringBuilder();
            try
            {
                string[] keyArr = _keys.Split(new char[] { '&' });
                for (int i = 0; i < keyArr.Length; i++)
                {
                    if (!string.IsNullOrEmpty(_values[i]) && _values[i] != "0")
                    {
                        _values[i] = UrlEncode(_values[i]);
                        urlParams.Append(string.Format(keyArr[i], _values) + "&");
                    }
                }
                if (!string.IsNullOrEmpty(urlParams.ToString()) && _url.IndexOf("?") == -1)
                    urlParams.Insert(0, "?");
            }
            catch
            {
                return _url;
            }
            return _url + DelLastChar(urlParams.ToString(), "&");
        }
        #endregion

        #region URL请求数据
        /// <summary>
        /// HTTP POST方式请求数据
        /// </summary>
        /// <param name="url">URL.</param>
        /// <param name="param">POST的数据</param>
        /// <returns></returns>
        public static string HttpPost(string url, string param)
        {
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
            request.Method = "POST";
            request.ContentType = "application/x-www-form-urlencoded";
            request.Accept = "*/*";
            request.Timeout = 15000;
            request.AllowAutoRedirect = false;

            StreamWriter requestStream = null;
            WebResponse response = null;
            string responseStr = null;

            try
            {
                requestStream = new StreamWriter(request.GetRequestStream());
                requestStream.Write(param);
                requestStream.Close();

                response = request.GetResponse();
                if (response != null)
                {
                    StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
                    responseStr = reader.ReadToEnd();
                    reader.Close();
                }
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                request = null;
                requestStream = null;
                response = null;
            }

            return responseStr;
        }

        /// <summary>
        /// HTTP GET方式请求数据.
        /// </summary>
        /// <param name="url">URL.</param>
        /// <returns></returns>
        public static string HttpGet(string url)
        {
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
            request.Method = "GET";
            //request.ContentType = "application/x-www-form-urlencoded";
            request.Accept = "*/*";
            request.Timeout = 15000;
            request.AllowAutoRedirect = false;

            WebResponse response = null;
            string responseStr = null;

            try
            {
                response = request.GetResponse();

                if (response != null)
                {
                    StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
                    responseStr = reader.ReadToEnd();
                    reader.Close();
                }
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                request = null;
                response = null;
            }

            return responseStr;
        }

        /// <summary>
        /// 执行URL获取页面内容
        /// </summary>
        public static string UrlExecute(string urlPath)
        {
            if (string.IsNullOrEmpty(urlPath))
            {
                return "error";
            }
            StringWriter sw = new StringWriter();
            try
            {
                HttpContext.Current.Server.Execute(urlPath, sw);
                return sw.ToString();
            }
            catch (Exception)
            {
                return "error";
            }
            finally
            {
                sw.Close();
                sw.Dispose();
            }
        }
        #endregion

        #region 操作权限菜单
        /// <summary>
        /// 获取操作权限
        /// </summary>
        /// <returns>Dictionary</returns>
        public static Dictionary<string, string> ActionType()
        {
            Dictionary<string, string> dic = new Dictionary<string, string>();
            dic.Add("Show", "显示");
            dic.Add("View", "查看");
            dic.Add("Add", "添加");
            dic.Add("Edit", "修改");
            dic.Add("Delete", "删除");
            dic.Add("Audit", "审核");
            dic.Add("Reply", "回复");
            dic.Add("Confirm", "确认");
            dic.Add("Cancel", "取消");
            dic.Add("Invalid", "作废");
            dic.Add("Build", "生成");
            dic.Add("Instal", "安装");
            dic.Add("Unload", "卸载");
            dic.Add("Back", "备份");
            dic.Add("Restore", "还原");
            dic.Add("Replace", "替换");
            return dic;
        }
        #endregion

        #region 替换URL
        /// <summary>
        /// 替换扩展名
        /// </summary>
        public static string GetUrlExtension(string urlPage, string staticExtension)
        {
            int indexNum = urlPage.LastIndexOf('.');
            if (indexNum > 0)
            {
                return urlPage.Replace(urlPage.Substring(indexNum), "." + staticExtension);
            }
            return urlPage;
        }
        /// <summary>
        /// 替换扩展名，如没有扩展名替换默认首页
        /// </summary>
        public static string GetUrlExtension(string urlPage, string staticExtension, bool defaultVal)
        {
            int indexNum = urlPage.LastIndexOf('.');
            if (indexNum > 0)
            {
                return urlPage.Replace(urlPage.Substring(indexNum), "." + staticExtension);
            }
            if (defaultVal)
            {
                if (urlPage.EndsWith("/"))
                {
                    return urlPage + "index." + staticExtension;
                }
                else
                {
                    return urlPage + "/index." + staticExtension;
                }
            }
            return urlPage;
        }
        #endregion

        #region 获取配置文件Key对应Value值  
        /// <summary>  
        /// 获取配置文件Key对应Value值  
        /// </summary>  
        /// <param name="key"></param>  
        /// <returns></returns>  
        public static string GetConfigValue(string key)
        {
            return ConfigurationManager.AppSettings[key].ToString();
        }
        #endregion

        #region 计算两个日期之间相差的天数
        /// <summary>
        /// 计算两个日期之间相差的天数
        /// </summary>
        /// <param name="dateStart">开始时间</param>
        /// <param name="dateEnd">结束时间</param>
        /// <returns></returns>
        public static int DateDiff(DateTime dateStart, DateTime dateEnd)
        {
            DateTime start = Convert.ToDateTime(dateStart.ToShortDateString());
            DateTime end = Convert.ToDateTime(dateEnd.ToShortDateString());
            TimeSpan sp = end.Subtract(start);
            return sp.Days;
        }

        /// <summary>
        /// 计算两个日期之间相差的秒数
        /// </summary>
        /// <param name="dateStart">开始时间</param>
        /// <param name="dateEnd">结束时间</param>
        /// <returns></returns>
        public static int DateDiffToSeconds(DateTime dateStart, DateTime dateEnd)
        {
            DateTime start = Convert.ToDateTime(dateStart.ToShortDateString());
            DateTime end = Convert.ToDateTime(dateEnd.ToShortDateString());
            TimeSpan sp = end.Subtract(start);
            return sp.Seconds;
        }

        /// <summary>  
        /// 获得两个日期的间隔  
        /// </summary>  
        /// <param name="dateTime1">日期一。</param>  
        /// <param name="dateTime2">日期二。</param>  
        /// <returns>日期间隔TimeSpan。</returns>  
        public static TimeSpan DateDiff2(DateTime dateTime1, DateTime dateTime2)
        {
            TimeSpan ts1 = new TimeSpan(dateTime1.Ticks);
            TimeSpan ts2 = new TimeSpan(dateTime2.Ticks);
            TimeSpan ts = ts1.Subtract(ts2).Duration();
            return ts;
        }
        #endregion

        #region 将传入的字符串中间部分字符替换成特殊字符
        /// <summary>
        /// 将传入的字符串中间部分字符替换成特殊字符
        /// </summary>
        /// <param name="value">需要替换的字符串</param>
        /// <param name="startLen">前保留长度</param>
        /// <param name="endLen">尾保留长度</param>
        /// <param name="replaceChar">特殊字符</param>
        /// <returns>被特殊字符替换的字符串</returns>
        public static string ReplaceWithSpecialChar(string value, int startLen = 4, int endLen = 4, char specialChar = '*')
        {
            try
            {
                int lenth = value.Length - startLen - endLen;
                string replaceStr = value.Substring(startLen, lenth);
                string specialStr = string.Empty;
                for (int i = 0; i < replaceStr.Length; i++)
                {
                    specialStr += specialChar;
                }
                value = value.Replace(replaceStr, specialStr);
            }
            catch (Exception)
            {
                return value;
            }
            return value;
        }
        #endregion

        #region 在指定字符串中间插入换行符
        public static string BreakLongString(string SubjectString, int lineLength, string str = "\n")
        {
            StringBuilder sb = new StringBuilder(); int sumCount = 0;
            ArrayList indexList = buildInsertIndexList(SubjectString, lineLength);
            byte[] bytes = Encoding.Default.GetBytes(SubjectString); int strCount = Encoding.Default.GetByteCount(SubjectString);
            for (int i = 0; i < indexList.Count; i++)
            {
                string s = indexList[i].ToString();
                if (!string.IsNullOrEmpty(s))
                {
                    int index = Utils.StrToInt(Utils.SplitString(s, ",")[0], 0);
                    int count = Utils.StrToInt(Utils.SplitString(s, ",")[1], 0);
                    string cutString = Encoding.Default.GetString(bytes, index, count);
                    sumCount += Encoding.Default.GetByteCount(cutString);
                    sb.Append(cutString);
                    if (i != indexList.Count - 1) sb.Append(str);
                }
            }

            if (strCount > sumCount)
            {
                string cutString = Encoding.Default.GetString(bytes, sumCount, strCount - sumCount);
                sb.Append(str + cutString);
            }
            return DelLastChar(sb.ToString(), str);
        }

        private static ArrayList buildInsertIndexList(string str, int maxLen)
        {
            int nowLen = 0; int index = 0; int count = 0;
            ArrayList list = new ArrayList();
            byte[] s = new ASCIIEncoding().GetBytes(str);

            for (int i = 0; i < s.Length; i++)
            {
                if ((int)s[i] == 63)
                    nowLen += 2;
                else
                    nowLen += 1;

                if (nowLen >= maxLen)
                {
                    index += count; count = nowLen; nowLen = 0;
                    list.Add(index + "," + count);
                }
            }
            return list;
        }
        #endregion

        #region 获取字符串长度
        /// <summary>
        /// 获取字符串长度
        /// </summary>
        /// <param name="str">字符串</param>
        /// <returns></returns>
        public static int GetStringLength(string str)
        {
            if (str.Length == 0)
                return 0;

            int tempLen = 0;
            byte[] s = new ASCIIEncoding().GetBytes(str);
            for (int i = 0; i < s.Length; i++)
            {
                if ((int)s[i] == 63)
                    tempLen += 2;
                else
                    tempLen += 1;
            }
            return tempLen;
        }
        #endregion

        #region 移除数据表中的列  
        /// <summary>
        /// 移除数据表中的列
        /// </summary>
        /// <param name="dt"></param>
        /// <param name="removeColumn"></param>
        /// <returns></returns>
        public static DataTable RemoveColumns(DataTable dt, string[] removeColumn)
        {
            foreach (string column in removeColumn)
            {
                if (dt.Columns.Contains(column))
                {
                    dt.Columns.Remove(column);
                }
            }
            return dt;
        }
        #endregion

        #region 根据datatable获得列名
        /// <summary>
        /// 根据datatable获得列名
        /// </summary>
        /// <param name="dt">表对象</param>
        /// <returns>返回结果的数据列数组</returns>
        public static string[] GetColumnsByDataTable(DataTable dt)
        {
            string[] strColumns = null;
            if (dt.Columns.Count > 0)
            {
                int columnNum = 0;
                columnNum = dt.Columns.Count;
                strColumns = new string[columnNum];
                for (int i = 0; i < dt.Columns.Count; i++)
                {
                    strColumns[i] = dt.Columns[i].ColumnName;
                }
            }
            return strColumns;
        }
        #endregion

        #region 获取Img的路径
        /// <summary>
        /// 获取Img的路径
        /// </summary>
        /// <param name="htmlText">Html字符串文本</param>
        /// <returns>以数组形式返回图片路径</returns>
        public static string[] GetHtmlImageUrlList(string htmlText)
        {
            Regex regImg = new Regex(@"<img\b[^<>]*?\bsrc[\s\t\r\n]*=[\s\t\r\n]*[""']?[\s\t\r\n]*(?<imgUrl>[^\s\t\r\n""'<>]*)[^<>]*?/?[\s\t\r\n]*>", RegexOptions.IgnoreCase);
            //新建一个matches的MatchCollection对象 保存 匹配对象个数(img标签)
            MatchCollection matches = regImg.Matches(htmlText);
            int i = 0;
            string[] sUrlList = new string[matches.Count];
            //遍历所有的img标签对象
            foreach (Match match in matches)
            {
                //获取所有Img的路径src,并保存到数组中
                sUrlList[i++] = match.Groups["imgUrl"].Value;
            }
            return sUrlList;
        }
        #endregion

        #region 替换编辑器中图片路径=======================
        /// <summary>
        /// 替换编辑器中图片路径
        /// </summary>
        /// <param name="content">内容</param>
        /// <param name="url">图片网址</param>
        /// <returns></returns>
        public static string ReplaceImage(string content, string url = "")
        {
            if (string.IsNullOrEmpty(content))
            {
                return string.Empty;
            }

            Regex reg = new Regex("IMG[^>]*?src\\s*=\\s*(?:\"(?<1>[^\"]*)\"|'(?<1>[^\']*)')", RegexOptions.IgnoreCase);
            MatchCollection m = reg.Matches(content);
            foreach (Match math in m)
            {
                string imgUri = math.Groups[1].Value;
                if (!(imgUri.StartsWith("http") || imgUri.StartsWith("https")))
                {
                    string newImgPath = url + imgUri;
                    if (newImgPath != string.Empty)
                    {
                        content = content.Replace(imgUri, newImgPath);
                    }
                }
            }
            return content;
        }
        #endregion

        #region 根据文件后缀获取文件类型
        /// <summary>
        /// 根据文件后缀获取文件类型
        /// </summary>
        /// <param name="suffix"></param>
        /// <returns></returns>
        public static string GetFileType(string suffix)
        {
            string img_suffix = "," + ConfigurationManager.AppSettings["img_suffix"].ToString() + ",";
            string video_suffix = "," + ConfigurationManager.AppSettings["video_suffix"].ToString() + ",";
            string file_suffix = "," + ConfigurationManager.AppSettings["file_suffix"].ToString() + ",";
            if (img_suffix.ToUpper().Contains("," + suffix.ToUpper() + ","))
            {
                return "img";
            }
            else if (video_suffix.ToUpper().Contains("," + suffix.ToUpper() + ","))
            {
                return "video";
            }
            else if (file_suffix.ToUpper().Contains("," + suffix.ToUpper() + ","))
            {
                return "file";
            }
            return "other";
        }
        #endregion

        #region 判断文件是否为图片
        /// <summary>
        /// 判断文件是否为图片
        /// </summary>
        /// <param name="path">文件的完整路径</param>
        /// <returns>返回结果</returns>
        public Boolean IsImage(string path)
        {
            try
            {
                System.Drawing.Image img = System.Drawing.Image.FromFile(path);
                return true;
            }
            catch (Exception e)
            {
                return false;
            }
        }
        #endregion

        #region 根据文件头判断上传的文件类型
        /// <summary>
        /// 根据文件头判断上传的文件类型
        /// </summary>
        /// <param name="filePath">filePath是文件的完整路径 </param>
        /// <returns>返回true或false</returns>
        public static bool IsPicture(string filePath)
        {
            try
            {
                FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
                BinaryReader reader = new BinaryReader(fs);
                var buffer = reader.ReadByte();
                var fileClass = buffer.ToString();
                buffer = reader.ReadByte();
                fileClass += buffer.ToString();
                reader.Close();
                fs.Close();
                //255216是jpg;7173是gif;6677是BMP,13780是PNG;7790是exe,8297是rar 
                if (fileClass == "255216" || fileClass == "7173" || fileClass == "13780" || fileClass == "6677")
                {
                    try
                    {
                        System.Drawing.Image img = System.Drawing.Image.FromFile(filePath);
                        return true;
                    }
                    catch (Exception e)
                    {
                        return false;
                    }
                }
                else
                {
                    return false;
                }
            }
            catch
            {
                return false;
            }
        }
        #endregion

        #region string数组转int数组
        /// <summary>
        /// string数组转int数组
        /// </summary>
        /// <param name="strArray">string数组</param>
        /// <returns></returns>
        public static int[] StringToIntArray(string strArray)
        {
            if (!string.IsNullOrEmpty(strArray))
            {
                try
                {
                    var array = SplitString(DelStartLastChar(strArray, ','), ",");
                    return Array.ConvertAll<string, int>(array, delegate (string s) { return int.Parse(s); });
                }
                catch
                {
                    return new int[0] { };
                }
            }
            else
            {
                return new int[0] { };
            }
        }
        #endregion

        #region 时间戳
        /// <summary>  
        /// 获取时间戳  
        /// </summary>  
        /// <returns></returns>  
        public static string GetTimeStamp()
        {
            TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
            return Convert.ToInt64(ts.TotalSeconds).ToString();
        }

        /// <summary>
        /// DateTime时间格式转换为Unix时间戳格式
        /// </summary>
        /// <param name="time"> DateTime时间格式</param>
        /// <returns>Unix时间戳格式</returns>
        public static int ConvertDateTimeInt(DateTime time)
        {
            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
            return (int)(time - startTime).TotalSeconds;
        }

        #endregion

        #region 生成指定位数的随机数
        /// <summary>
        /// 该方法用于生成指定位数的随机数
        /// </summary>
        /// <param name="VcodeNum">参数是随机数的位数</param>
        /// <returns>返回一个随机数字符串</returns>
        public static string RandNum(int VcodeNum)
        {
            string Vchar = "0,1,2,3,4,5,6,7,8,9";
            string[] VcArray = Vchar.Split(',');//拆分成数组
            string VNum = "";
            int temp = -1;//记录上次随机数值，尽量避避免生产几个一样的随机数

            Random rand = new Random();
            //采用一个简单的算法以保证生成随机数的不同
            for (int i = 0; i < VcodeNum; i++)
            {
                if (temp != -1)
                {
                    rand = new Random(i * temp * unchecked((int)DateTime.Now.Ticks));
                }

                int t = rand.Next(VcArray.Length - 1);
                if (temp != -1 && temp == t)
                {
                    return RandNum(VcodeNum);

                }
                temp = t;
                VNum += VcArray[t];
            }
            return VNum;
        }
        #endregion

        #region 检测是否是http和https
        /// <summary>
        /// 检测是否是http和https
        /// </summary>
        /// <param name="url"></param>
        /// <returns></returns>
        public static bool ContainsHttpOrHttps(string url)
        {
            Regex reg = new Regex(@"http|https");
            Match m = reg.Match(url);
            return m.Success;
        }
        #endregion

        #region 随机生成手机号
        /// <summary>
        /// 随机生成手机号
        /// </summary>
        /// <returns></returns>
        public static string RandomMobile()
        {
            string[] telStarts = "134,135,136,137,138,139,150,151,152,157,158,159,130,131,132,155,156,133,153,180,181,182,183,185,186,176,187,188,189,177,178".Split(',');

            Random ran = new Random();
            int n = ran.Next(10, 1000);
            int index = ran.Next(0, telStarts.Length - 1);
            string first = telStarts[index];
            string second = (ran.Next(100, 888) + 10000).ToString().Substring(1);
            string thrid = (ran.Next(1, 9100) + 10000).ToString().Substring(1);
            return first + second + thrid;
        }
        #endregion

        #region 邮箱号中间一串改成*号
        public static string ReplaceEmail(string email)
        {
            string s = Regex.Replace(email, @"(?<=\w{2}).*?(?=\w@)", m =>
            {
                return string.Join(string.Empty, Enumerable.Repeat('*', m.Value.Length));
            });
            return s;
        }
        #endregion

        #region 替换手机号码中间数字为*号
        public static string ReplaceMobile(string mobile)
        {
            return Regex.Replace(mobile, @"(?im)(\d{3})(\d{4})(\d{4})", "$1****$3");//134****0555
        }
        #endregion

        #region 返回时间戳，毫秒 
        /// <summary> 
        /// 返回时间戳，毫秒 
        /// </summary> 
        /// <param name="time"></param> 
        /// <returns></returns> 
        public static long UtcTrick(DateTime time)
        {
            DateTimeOffset fs = new DateTimeOffset(time);
            long trick = (fs.UtcTicks - 621355968000000000) / 10000;//秒值 
            return trick;
        }
        #endregion

        #region 获取流文件扩展名
        /// <summary>
        /// 获取图片流文件扩展名
        /// </summary>
        /// <param name="image"></param>
        /// <returns></returns>
        public static string GetExtension(Image image)
        {
            if (image != null)
            {
                string fileExtension = image.RawFormat.ToString().Substring(14),
                       jpgExtension = System.Drawing.Imaging.ImageFormat.Jpeg.Guid.ToString(),
                       gifExtension = System.Drawing.Imaging.ImageFormat.Gif.Guid.ToString(),
                       pngExtension = System.Drawing.Imaging.ImageFormat.Png.Guid.ToString(),
                       iconExtension = System.Drawing.Imaging.ImageFormat.Icon.Guid.ToString(),
                       bmpExtension = System.Drawing.Imaging.ImageFormat.Bmp.Guid.ToString(),
                       tiffExtension = System.Drawing.Imaging.ImageFormat.Tiff.Guid.ToString(),
                       wmfExtension = System.Drawing.Imaging.ImageFormat.Wmf.Guid.ToString(),
                       emfExtension = System.Drawing.Imaging.ImageFormat.Emf.Guid.ToString(),
                       exifExtension = System.Drawing.Imaging.ImageFormat.Exif.Guid.ToString();
                fileExtension = fileExtension.Substring(0, fileExtension.Length - 1);
                if (fileExtension == jpgExtension)
                {
                    return ".jpg";
                }
                else if (fileExtension == gifExtension)
                {
                    return ".gif";
                }
                else if (fileExtension == pngExtension)
                {
                    return ".png";
                }
                else if (fileExtension == iconExtension)
                {
                    return ".icon";
                }
                else if (fileExtension == bmpExtension)
                {
                    return ".bmp";
                }
                else if (fileExtension == tiffExtension)
                {
                    return ".tiff";
                }
                else if (fileExtension == wmfExtension)
                {
                    return ".wmf";
                }
                else if (fileExtension == emfExtension)
                {
                    return ".emf";
                }
                else if (fileExtension == exifExtension)
                {
                    return ".exif";
                }
            }
            return "";
        }
        #endregion

        #region  获取文件的路劲+http
        public static string GetIsFileUrl(object _fileUrl)
        {
            string rt = String.Empty;
            string imgurl = Utils.ObjectToStr(_fileUrl);
            if (!string.IsNullOrEmpty(imgurl))
            {
                if (imgurl.Contains("http"))
                {
                    rt = imgurl;
                }
                else
                {
                    rt = System.Configuration.ConfigurationManager.AppSettings["Web"].ToString() + imgurl;
                }
            }
            return rt;
        }
        #endregion

      
      
    }
}