代码修改后的版本，全部提交

COSXML/Model/Bucket/PutBucketPolicyRequest.cs

@@ -0,0 +1,18 @@
+using COSXML.Common;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace COSXML.Model.Bucket
+{
+    public sealed class PutBucketPolicyRequest : BucketRequest
+    {
+        public PutBucketPolicyRequest(string bucket)
+            : base(bucket)
+        {
+            this.method = CosRequestMethod.PUT;
+            this.queryParameters.Add("policy ", null);
+            this.needMD5 = true;
+        }
+    }
+}