Question

我有一个用Delphi编写的控制台应用程序（Host.exe）。它接受stdin readln和writeln对stdout的响应。现在，我想以C＃为Host.exe输入并从Host.exe获取输出的方式在C＃应用程序中使用Host.exe 理想情况下，我编写下面的代码，但它不起作用：它挂在outputReader.ReadLine（）中的某处;

System.IO.File.WriteAllText(tmp, vbs);

Process pProcess = new Process();

pProcess.StartInfo.WindowStyle = ProcessWindowStyle.Normal;

//strCommand is path and file name of command to run
pProcess.StartInfo.FileName = @"Host.exe";
pProcess.StartInfo.Arguments = "\"runa " + tmp +"\"";
// runs script file tmp in background
pProcess.StartInfo.CreateNoWindow = true;
pProcess.StartInfo.UseShellExecute = false;
pProcess.StartInfo.RedirectStandardOutput = true;
pProcess.StartInfo.RedirectStandardInput = true;
pProcess.StartInfo.RedirectStandardError = true;

pProcess.Start();

StreamWriter inputWriter = pProcess.StandardInput;
StreamReader outputReader = pProcess.StandardOutput;

while (true)
{
    inputWriter.WriteLine("getmsg");
    inputWriter.Flush();
    string s = outputReader.ReadLine(); // then do something with it

    inputWriter.WriteLine("progressglobal");
    inputWriter.Flush();

    string p = outputReader.ReadLine();
    if (p == "100")
    {
        break;
    }
    Application.DoEvents();
    Thread.Sleep(1000);
}
inputWriter.WriteLine("exit");
inputWriter.Flush();                    
pProcess.WaitForExit();

非常感谢您提前提出任何建议！

Answer 1

你读了两行：

string s = outputReader.ReadLine();

和

string p = outputReader.ReadLine();

似乎您只需要最后一行，因为未使用变量s。

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