C# 与 CLI 进程的对话

Posted 2023-03-17

【中文标题】C# 与 CLI 进程的对话

【英文标题】：C# Dialogue with CLI Process

【发布时间】：2020-11-26 13:07:09

【问题描述】：

我想在 Windows 控制台中运行一个进程，然后，我想通过（通过按钮单击）一些命令并在 RichTextBox 中查看结果。

我能够启动程序并在启动后读取响应，但是当我尝试发送任何命令时，它不起作用。我无法用这个过程“说话”……

如果您有任何想法。我会欣然接受！

代码下方：

public static void SortOutputHandler(object sendingProcess, DataReceivedEventArgs outLine) 
    // Collect the sort command output.
    if (!String.IsNullOrEmpty(outLine.Data)) 
        numOutputLines++;
        // Add the text to the collected output.
        sortOutput.Append(Environment.NewLine + $"[numOutputLines] - outLine.Data");
        //RichTextBox
        MCM.ActiveForm.Invoke(MCM.AffichageTextDelegate, new object[]  outLine.Data );
    

   
public static async Task<int> RunProcessAsync() 
    using (var process = new Process 
        StartInfo = 
            FileName = "AAA.exe",
            Arguments = “-v COM74",
            UseShellExecute = false, 
            CreateNoWindow = false,
            RedirectStandardOutput = true,
            RedirectStandardInput = true,
            RedirectStandardError = true
        ,
        EnableRaisingEvents = true 
    )
     return await RunProcessAsync(process).ConfigureAwait(false); 


private static Task<int> RunProcessAsync(Process process) 
    var tcs = new TaskCompletionSource<int>();
    
    process.Exited += (s, ea) => tcs.SetResult(process.ExitCode);
    process.OutputDataReceived += (s, ea) => Console.WriteLine(ea.Data);
    sortOutput = new StringBuilder();
    process.OutputDataReceived += SortOutputHandler;
    process.ErrorDataReceived += (s, ea) => Console.WriteLine("ERR: " + ea.Data);
    
    process.Start();
    
    process.BeginOutputReadLine();
    process.BeginErrorReadLine();
    
    return tcs.Task;


private async void Btn_Click(object sender, EventArgs e) 
    await RunProcessAsync();

【问题讨论】：

你是如何向进程发送命令的？

我试过了：Console.WriteLine。它是在控制台中编写的，但该过程没有回答。当我使用 StandardInput 时它不起作用，我认为这是因为我重新启动了一个新进程，我没有在第一个进程中写入。

【参考方案1】：

它使用同步过程：

public static Process myProcess;
public static StreamWriter myStreamWriter;

        Process myProcess = new Process();
        myProcess.StartInfo.FileName = "AAA.exe";
        myProcess.StartInfo.Arguments = '-' + "p" + " " + ComboBoxPortCom.Text;
        myProcess.StartInfo.UseShellExecute = false;
        myProcess.StartInfo.RedirectStandardInput = true;
        myProcess.StartInfo.RedirectStandardOutput = true;
        myProcess.StartInfo.RedirectStandardError = true;

        myProcess.OutputDataReceived += (s, ea) => Console.WriteLine(ea.Data);
        sortOutput = new StringBuilder();
        myProcess.OutputDataReceived += SortOutputHandler;
        myProcess.ErrorDataReceived += (s, ea) => Console.WriteLine("ERR: " + ea.Data);
        
        myProcess.Start();

        myProcess.BeginOutputReadLine();
        myProcess.BeginErrorReadLine();
        myStreamWriter = myProcess.StandardInput;

        myStreamWriter.WriteLine("Command1" + '\n');