如何在Python中打印C#.Net回调函数

我试图从python中访问C#.Net dll，并在执行C#方法时用python打印状态。请帮我解决这个问题。 我尝试了以下代码：

C#dll类库包含windows窗体控件

using System;
using System.Windows.Forms;
using System.Threading;
using System.Threading.Tasks;

namespace TestLib
{
    public partial class TestForm : Form
    {
        public TestForm()
        {
            InitializeComponent();
        }

        public string Method()
        {
            try
            {
                Task task = Task.Factory.StartNew(() => Interact_With_Python());           
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            return "Forms Says Hello";
        }

        private void Interact_With_Python()
        {
            PrintStatus("Hello World...");
            Thread.Sleep(1000);
            PrintStatus("Hello World...1");
            Thread.Sleep(1000);
            PrintStatus("Hello World...2");
            Thread.Sleep(1000);
        }

        private delegate void UpdateStatusDelegate(string status);

        //Print this Status in Python
        private void PrintStatus(string status)
        {
            if (this.richTextBox.InvokeRequired)
            {
                this.Invoke(new UpdateStatusDelegate(this.PrintStatus), new object[] { status });
                return;
            }
            this.richTextBox.AppendText(status);
        }
    }
}

Python：从C#dll调用方法

---

最后，我从stackoverflow中找到了解决方案

C#Net

Python代码：

import clr
from types import *
from System import Action
clr.AddReference("Path\TestLib.dll")
import TestLib
print("Hello")
frm = TestLib.TestForm()
fakeparam="hello"
def f(response):
    print response 
val = frm.Interact_With_Python(Action[str](f))
print val 

输出：

Hello
Executing Step1
Executing Step2
Executing Step3
Done

---

你的错误是什么？我没有收到这个代码的任何错误。它只打印“Forms Says Hello”，但我希望输出是[“Hello World…”、“Hello World…1”、“Hello World…2”、“Forms Says Hello”]。这是ironpython吗？

import clr
from types import *
from System import Action
clr.AddReference("Path\TestLib.dll")
import TestLib
print("Hello")
frm = TestLib.TestForm()
fakeparam="hello"
def f(response):
    print response 
val = frm.Interact_With_Python(Action[str](f))
print val 

Hello
Executing Step1
Executing Step2
Executing Step3
Done