c# - 我的程序停留在 Process.WaitForExit();

Question

我的程序一直运行良好，但突然卡在 Process.WaitForExit();而不继续执行下一个命令。我已经多次运行该程序而没有出现错误。有谁知道我该如何调试这个或者有谁知道背后的问题是什么？会不会是我的 python.exe 有问题？谢谢!

public static void Process(string location)
    {
        int ExitCode;
        ProcessStartInfo ProcessInfo;
        Process Process;

        ProcessInfo = new ProcessStartInfo();
        ProcessInfo.FileName = location;
        ProcessInfo.Arguments = Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + 
            "\\parse.py " + Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "\\cache.cell";
        ProcessInfo.CreateNoWindow = true;
        ProcessInfo.UseShellExecute = false;
        ProcessInfo.RedirectStandardOutput = true;
        ProcessInfo.RedirectStandardError = true;
        Process = Process.Start(ProcessInfo);
        // (...)
        Process.WaitForExit();

        string stderr = Process.StandardError.ReadToEnd();
        string stdout = Process.StandardOutput.ReadToEnd();
        //Console.WriteLine("STDERR: " + stderr);
        //Console.WriteLine("STDOUT: " + stdout);

        using (System.IO.StreamWriter file = new System.IO.StreamWriter(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "\\test.txt"))
        {
            file.WriteLine(stdout);
        }

Answer 1

在进程退出之前，您的程序不会打印任何内容。如果进程永远不会退出，您将永远看不到任何东西，并且无法调试问题。

更好地打印出来

var info = new ProcessStartInfo("msbuild")
{
    UseShellExecute = false,
    CreateNoWindow = true,
    RedirectStandardError = true,
    RedirectStandardOutput = true,            
};

using (var p = Process.Start(info) )
{
    p.ErrorDataReceived += (s, e) => Console.Error.WriteLine(e.Data);
    p.OutputDataReceived += (s, e) => Console.WriteLine(e.Data);
    p.BeginErrorReadLine();
    p.BeginOutputReadLine();
    p.WaitForExit();
}

参见 How to keeps colours from msbuild output?