private void fileCopy(string strURL)
        {
            //异步HTTP请求
            AsyncHttpRequester ahr = new AsyncHttpRequester();

            ahr.PostExecute += (result) =>
            {
                //获取Json数据
                ActionJson ajson = new ActionJson(result);

                //文件拷贝成功
                if (ajson.flag)
                {
                    //跨线程修改UI
                    MethodInvoker mi = new MethodInvoker(() =>
                    {
                        readFolderMenu(CuttentFolderID);
                    });
                    this.BeginInvoke(mi);
                }
                //文件拷贝失败
                else
                {
                    //提示错误信息
                    MessageBox.Show(ajson.message);
                }
            };
            ahr.GetHttpResponse(strURL, null);
        }
        private void renameFile(int folderid, int fileid, string newfilename)
        {
            string strURL = URL.GetUrl_RenameFile(folderid, fileid, newfilename);

            //异步HTTP请求
            AsyncHttpRequester ahr = new AsyncHttpRequester();

            ahr.PostExecute += (result) =>
            {
                //获取Json数据
                ActionJson ajson = new ActionJson(result);

                //重命名成功
                if (ajson.flag)
                {
                    //跨线程修改UI
                    MethodInvoker mi = new MethodInvoker(() =>
                    {
                        readFolderMenu(CuttentFolderID);
                    });
                    this.BeginInvoke(mi);
                }
                //失败
                else
                {
                    //提示错误信息
                    MessageBox.Show(ajson.message);
                }
            };
            ahr.GetHttpResponse(strURL, null);
        }