運行外部進程，等待程序結束，獲取exitcode並保持控制檯打開？

Question

我想運行幾個程序由一個一個的，但有時我想保留自己的控制檯窗口打開查看消息/錯誤

是否有可能運行cmd.exe /K anotherProgram.exe，等到anotherProgram完成（WaitForExit()）並獲得另一個程序的exitCode？或者，也許我可以保持控制檯以其他方式打開，而不是從cmd /K運行它？

Answer 1

您可以捕獲控制檯程序的輸出和errorstream得到消息/錯誤。 這樣你也可以得到程序的退出代碼。

看看在Process -class可用的事件：

Process.OutputDataReceived Event ==>用這個來捕獲標準輸出消息

Process.ErrorDataReceived Event ==>用這個來捕獲錯誤消息

Process.Exited Event ==>用這個來獲得退出代碼

以下是關於格式化驅動器的例子（沒有異常處理和參數測試）其中控制檯窗口不可訪問，並且輸出和錯誤流被捕獲並顯示在消息框中。 退出代碼也在退出過​​程時進行檢查。

private Process formatProc; 

Private void DoFormat(string driveLetter) 
    this.formatProc = new Process 
    { 
     StartInfo = 
      { 
       UseShellExecute = false, 
       FileName = "format.com", 
       Arguments = string.Format("/FS:FAT {0}: /V: /Q", driveLetter), 
       RedirectStandardInput = true, 
       RedirectStandardOutput = true, 
       RedirectStandardError = true, 
       CreateNoWindow = true, 
       WindowStyle = ProcessWindowStyle.Hidden 
      }, 
     EnableRaisingEvents = true 
    }; 

    this.formatProc.OutputDataReceived += this.ProcOutputDataReceivedHandler; 
    this.formatProc.ErrorDataReceived += this.ProcErrorDataReceivedHandler; 
    this.formatProc.Exited += this.ProcExitedHandler; 

    this.formatProc.Start(); 
    this.formatProc.BeginOutputReadLine(); 
    this.formatProc.BeginErrorReadLine(); 
} 

private void ProcOutputDataReceivedHandler(object sendingProcess, DataReceivedEventArgs e) 
{ 
    if (string.IsNullOrEmpty(e.Data)) 
    { 
     MessageBox.Show(e.Data); 
    } 
} 

private void ProcErrorDataReceivedHandler(object sendingProcess, DataReceivedEventArgs e) 
{ 
    if (string.IsNullOrEmpty(e.Data)) 
    { 
     MessageBox.Show(e.Data); 
    } 
} 

private void ProcExitedHandler(object sender, EventArgs e) 
{ 
    var exitCode = this.formatProc.ExitCode; 
    var message = string.Empty; 
    switch (exitCode) 
    { 
     case 0: 
      message = "Format done."; 
      break; 
     case 1: 
      message = "Format failed. Incorrect parameters were supplied."; 
      break; 
     case 4: 
      message = "Format failed. A fatal error occurred."; 
      break; 
     case 5: 
      message = "Format ended by user."; 
      break; 
     default: 
      message = "Format failed. ExitCode = " + this.formatProc.ExitCode; 
      break; 
    } 

    this.formatProc.Dispose(); 
    MessageBox.Show(message); 
}