/// <summary>

        /// Winform程序退出删除运行目录 FormClosed调用

        /// </summary>

        private void DeletExeFile()

        {

            string fileName = @"C:\remove.bat";

            StreamWriter bat = new StreamWriter(fileName, false, Encoding.Default);

            string exePath = Application.ExecutablePath;

            string dir = exePath.Substring(0, exePath.LastIndexOf('\\')); //目标目录

            bat.WriteLine("cd..");

            bat.WriteLine("ping -n 3 -w 100 202.96.128.96"); //设置延时

            bat.WriteLine(string.Format("rd \"{0}\" /s /q", dir)); //强制删除目标目录

            bat.Close();

            ProcessStartInfo info = new ProcessStartInfo(fileName);

            info.WindowStyle = ProcessWindowStyle.Hidden;

            Process.Start(info);

            Environment.Exit(Environment.ExitCode);

        }