代码修改后的版本，全部提交

COSXML/Common/CosGrantPermission.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+
+using System.Text;
+using COSXML.Common;
+using COSXML.Utils;
+/**
+* Copyright (c) 2018 Tencent Cloud. All rights reserved.
+* 11/2/2018 2:30:52 PM
+* bradyxiao
+*/
+namespace COSXML.Common
+{
+    public enum CosGrantPermission
+    {
+        /// <summary>
+        /// 只读权限
+        /// </summary>
+        [CosValue("READ")]
+        READ = 0,
+
+        /// <summary>
+        /// 只写权限
+        /// </summary>
+        [CosValue("WRITE")]
+        WRITE,
+
+        /// <summary>
+        /// 读写权限
+        /// </summary>
+        [CosValue("FULL_CONTROL")]
+        FULL_CONTROL
+    }
+}