.net mvc记录下载日志txt

参考链接：https://bbs.csdn.net/topics/300153370
https://blog.csdn.net/u010452388/article/details/78220659

 /// <summary>
        /// 下载客户端zip文件
        /// </summary>
        public void DownloadClient()
        {
            string url = "D:/InstallationPackage/AlituoclientInstall.zip";
            string recordurl = "D:/InstallationPackage/downloadrecord.txt";
            //Server.MapPath("~/")虚拟路径函数
            DownloadFile(url);//上一篇文章又下载函数
            Thread.Sleep(100);
            WriteRecord(recordurl);//记录下载日志
        }
        //创建日志txt文档
        public void WriteRecord(string recordurl)
        {
             StreamWriter sw;
            //判断是否已经有了这个文件
            if (System.IO.File.Exists(recordurl))
            {
                using (sw = System.IO.File.AppendText(recordurl))  //如果文件存在，则在文件末尾续写
                {
                    sw.WriteLine(DateTime.Now + "测试");
                }
            }
            else
            {
                using (sw = System.IO.File.CreateText(recordurl))  //创建文件，并写入内容
                {
                    sw.WriteLine(DateTime.Now + "测试");
                }
            }
        }