/**/
           /// <summary>
           /// WebClient上传文件至服务器
           /// </summary>
           /// <param name="fileNamePath">文件名，全路径格式</param>
           /// <param name="uriString">服务器文件夹路径</param>
           /// <param name="IsAutoRename">是否自动按照时间重命名</param>
           public static void UpLoadFile(string fileNamePath, string uriString, bool IsAutoRename)
           {
               string fileName = fileNamePath.Substring(fileNamePath.LastIndexOf("\\") + 1);
               string NewFileName = fileName;
               if (IsAutoRename)
               {
                   NewFileName = DateTime.Now.ToString("yyMMddhhmmss") + DateTime.Now.Millisecond.ToString() + fileNamePath.Substring(fileNamePath.LastIndexOf("."));
               }
               string fileNameExt = fileName.Substring(fileName.LastIndexOf(".") + 1);
               if (uriString.EndsWith("/") == false) uriString = uriString + "/";

               uriString = uriString + NewFileName;
        
               //创建WebClient实例
               WebClient myWebClient = new WebClient();
               myWebClient.Credentials = CredentialCache.DefaultCredentials;
               // 要上传的文件
               FileStream fs = new FileStream(fileNamePath, FileMode.Open, FileAccess.Read);
               //FileStream fs = OpenFile();
               BinaryReader r = new BinaryReader(fs);
               byte[] postArray = r.ReadBytes((int)fs.Length);
               Stream postStream = myWebClient.OpenWrite(uriString, "PUT");
               
               try
               {

                   //使用UploadFile方法可以用下面的格式
                   //myWebClient.UploadFile(uriString,"PUT",fileNamePath);


                   if (postStream.CanWrite)
                   {
                       postStream.Write(postArray, 0, postArray.Length);
                       postStream.Close();
                       fs.Dispose();
                      
                   }
                   else
                   {
                       postStream.Close();
                       fs.Dispose();
                       
                   }

               }
               catch (Exception err)
               {
                   postStream.Close();
                   fs.Dispose();
                
                   throw err;
               }
               finally
               {
                   postStream.Close();
                   fs.Dispose();
               }
           }