Question

我正在开发C＃应用程序，我需要运行一个外部控制台进程（例如python脚本）并实时接收该脚本的输出数据。 python脚本是这样的：

import time
while 1:
    print("Hi Foo!")
    time.sleep(.3)

以下C＃代码在C＃控制台上实时打印python脚本输出：

static void Main(string[] args)
{
    using (Process process = new Process())
    {
        process.StartInfo.FileName = "python.exe";
        process.StartInfo.Arguments = "test.py";
        process.StartInfo.UseShellExecute = false;
        process.Start();
        process.WaitForExit();
    }
}

但是，当我尝试捕获输出数据并将其手动写入控制台时，会失败。根据其他帖子推荐的解决方案是这样的，但它不起作用：

static void Main(string[] args)
{
    using (Process process = new Process())
    {
        process.StartInfo.FileName = "python.exe";
        process.StartInfo.Arguments = "test.py";
        process.StartInfo.UseShellExecute = false;
        process.StartInfo.RedirectStandardOutput = true;
        process.EnableRaisingEvents = true;
        process.OutputDataReceived += (s, e) => Console.WriteLine(e.Data);
        process.Start();
        process.BeginOutputReadLine();
        process.WaitForExit();
    }
}

process.StandardOutput.ReadToEnd()在阻止模式下工作，等待进程退出并立即返回全部输出。实时输出捕获到底有什么问题，我该如何解决？

Answer 1

        using (var process = new Process())
        {
            process.StartInfo.FileName = @"python.exe";
            process.StartInfo.Arguments = "-u test.py";
            process.StartInfo.RedirectStandardOutput = true;
            process.StartInfo.UseShellExecute = false;
            process.Start();

            while (!process.StandardOutput.EndOfStream)
            {
                string line = process.StandardOutput.ReadLine();
                Console.WriteLine(line);
                // do something with line
            }
            process.WaitForExit();
            Console.Read();
        }

进程的C＃实时标准输出/错误捕获

1 个答案: