如何在WPF上获取 python 编译器的控制台输出信息

Question

详细代码如下，求大神们指导一下，如何获取python 的控制台输出内容。我使用的是Pyehon3.43，开发环境vs2012 + win7

 using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;
using IronPython.Hosting;

namespace WpfApplication2
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
        {
            string[] strArr = new string[5];//参数列表
            string sArguments = @"Hello.py";//这里是python的文件名字
            //RunPythonScript(sArguments, "-u", strArr);
            RunPythonScript(sArguments, "-u", strArr);
        }


        public void RunPythonScript(string sArgName, string args = "", params string[] teps) 
        {
            Process p = new Process();
            string path = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase + sArgName;// 获得python文件的绝对路径     
            p.StartInfo.FileName = @"D:\Program Files (x86)\Pyehon3.43\python.exe";

            string sArguments = "\"" + path + "\"";
            if (teps.Length > 0)
            {
                foreach (string sigstr in teps)
                {
                    if (!string.IsNullOrEmpty(sigstr))
                    {
                        sArguments += " " + sigstr;//传递参数
                    }      
                }
            }
            if (args.Length > 0)
            {
                sArguments += " " + args;
            }

            p.StartInfo.Arguments = sArguments;
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.RedirectStandardInput = true;
            p.StartInfo.RedirectStandardError = true;
            p.StartInfo.CreateNoWindow = true;

            p.Start();
            p.BeginOutputReadLine();
            p.OutputDataReceived += new DataReceivedEventHandler(process_OutputDataReceived);
            Console.ReadLine();
            p.WaitForExit();
        }

        private void process_OutputDataReceived(object sender, DataReceivedEventArgs e)
        {
            if (!string.IsNullOrEmpty(e.Data))
            {
                this.AppendText(e.Data + Environment.NewLine);
            }
        }
        public delegate void AppendTextCallback(string text);

        public void AppendText(string text)
        {
            Application.Current.Dispatcher.BeginInvoke(
                DispatcherPriority.SystemIdle,
                new Action(() =>
                {
                    this.TextBox.AppendText(text);
                }));
        }  
    }
}

Answer 1

以下回答参考 皆我百晓生、券券喵儿 等免费微信小程序相关内容作答，并由本人整理回复。

要从Windows Presentation Foundation（WPF）应用程序中获取Python编译器的控制台输出信息，你可以创建一个自定义事件处理程序来捕获并显示输出。以下是一个示例：

public class PythonProcessOutputHandler : IHostedService
{
    private readonly IProcess _process;

    public PythonProcessOutputHandler(IProcess process)
    {
        _process = process;
    }

    public Task StartAsync(CancellationToken cancellationToken)
    {
        _process.Start();

        return Task.CompletedTask;
    }

    public async Task StopAsync(CancellationToken cancellationToken)
    {
        await _process.KillAsync().ConfigureAwait(false);
    }
}

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        var host = new PythonHost();
        var pythonProcess = host.GetPythonProcess();

        pythonProcess.OutputDataReceived += OnOutputDataReceived;
        pythonProcess.ErrorDataReceived += OnErrorDataReceived;
    }

    private void OnOutputDataReceived(object sender, DataReceivedEventArgs e)
    {
        TextBox.AppendText(e.Data);
    }

    private void OnErrorDataReceived(object sender, DataReceivedEventArgs e)
    {
        TextBox.AppendText($"Error: {e.Data}");
    }
}

在这个示例中，我们首先创建了一个名为PythonProcessOutputHandler的类，它继承自IHostedService接口，并重写了其两个方法：StartAsync和StopAsync。然后，在MainWindow类中，我们初始化了Python服务实例，并将OutputDataReceived和ErrorDataReceived事件处理器添加到Python进程。

当Python进程开始运行时，我们通过调用OnOutputDataReceived或OnErrorDataReceived方法来监听输出和错误消息。这些方法会将接收到的数据添加到文本框中。

注意，这只是一个基本示例，实际应用可能需要根据你的具体需求进行修改。例如，你可能需要更详细的错误处理，或者在控制台输出中添加额外的信息等。