c#线程中下载文件到本地

额，太懒了 直接上示例代码。。。

        /// <summary>
        /// 下载文件到本地   2017-05-31
        /// </summary>
        /// <param name="DownloadPath">本地下载目录</param>
        /// <param name="FullFilePath">下载地址</param>
        /// <param name="FileName">文件名</param>
        /// <returns></returns>
        private void DownLoadSoft(string DownloadPath, string FullFilePath, string FileName)
        {
            ParameterizedThreadStart s = new ParameterizedThreadStart(DownLoadSoftAu);
            Thread thread = new Thread(s);
            thread.IsBackground = true;
            thread.Start(new object[] { DownloadPath, FullFilePath, FileName });
            thread.Join();
        }
        private void DownLoadSoftAu(object obj)
        {

            string DownloadPath = ((object[])obj)[].ToString().Trim();
            string FullFilePath =((object[])obj)[].ToString().Trim();
            string FileName = ((object[])obj)[].ToString().Trim();
            try
            {
                if (!Directory.Exists(DownloadPath))
                {
                    Directory.CreateDirectory(DownloadPath);
                }
                using (FileStream fs = new FileStream(DownloadPath + FileName, FileMode.Create, FileAccess.Write))
                {
                    //创建请求
                    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(FullFilePath);
                    //接收响应
                    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                    //输出流
                    Stream responseStream = response.GetResponseStream();
                    byte[] bufferBytes = new byte[];//缓冲字节数组
                    int bytesRead = -;
                    while ((bytesRead = responseStream.Read(bufferBytes, , bufferBytes.Length)) > )
                    {
                        fs.Write(bufferBytes, , bytesRead);
                    }
                    //关闭写入
                    fs.Flush();
                    fs.Close();
                }

            }
            catch (Exception exp)
            {
                //返回错误消息
            }
        }