C#SDK提交，在window上验证

sop-sdk/sdk-csharp/SDKCSharp/Utility/SignUtil.cs

@@ -1,9 +1,6 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace SDKCSharp.Utility
 {

sop-sdk/sdk-csharp/SDKTest/Program.cs

@@ -19,7 +19,7 @@ namespace SDKTest
         static string filePath = "/Users/thc/logs/priKey.txt";
 
         // 声明一个就行
-        static OpenClient client = new OpenClient(url, appId, filePath, true);
+        static OpenClient client = new OpenClient(url, appId, privateKey);
 
         public static void Main(string[] args)
         {