C#执行外部命令的方法

///<summary>///executes a system command from inside csharp///</summary>///<param name="cmd">a dos type command like "isql ..."</param>///<param name ="millsecTimeOut">how long to wait on the command</param>public static int executeCommand(string cmd, int millsecTimeOut) {  System.Diagnostics.ProcessStartInfo processStartInfo = new System.Diagnostics.ProcessStartInfo("CMD.exe", "/C "+cmd);  processStartInfo.CreateNoWindow = true;  processStartInfo.UseShellExecute = false;  System.Diagnostics.Process process = System.Diagnostics.Process.Start(processStartInfo);  process.WaitForExit(millsecTimeOut); //wait for 20 sec  int exitCode = process.ExitCode;  process.Close();  return exitCode;}