c 获取python3返回值 c#获取python返回值

1. python模块

import cv2
import numpy as np
import sys

def f(path):
    img = cv2.imread(path,0)
    height,width = img.shape
    size = np.random.randint(1,6)
    return height,width,size

if __name__ == '__main__':
    print(f(sys.argv[1]))

2. C#模块

using System;
using System.Diagnostics;

namespace InterfaceDefect
{
    class Program
    {
        static void Main(string[] args)
        {
            string filename = @"D:\Softwares\Anaconda3\python.exe";  // python解释器
            // pyhon模块 arg1 arg2
            string strArgument = @"D:\code\Projects\ConsoleApplication2\ConsoleApplication2\nn_module.py D:\code\Projects\ConsoleApplication2\ConsoleApplication2\0621.png";
            ProcessStartInfo startPythonInfo = new ProcessStartInfo(filename, strArgument);
            startPythonInfo.UseShellExecute = false;  // 是否使用操作系统的shell启动进程
            startPythonInfo.RedirectStandardOutput = true;  // 是否将应用程序的输出写入到Process.StandardOutput流中。
            startPythonInfo.RedirectStandardError = true;  // 是否将应用程序的错误输出写入到Process.StandardError流中。

            Process process = new Process();
            process.StartInfo = startPythonInfo;
            process.OutputDataReceived += CaptureOutpt;
            //process.OutputDataReceived += CaptureRrror;
             
            process.Start();
            process.BeginOutputReadLine();
            //process.BeginErrorReadLine();
            process.WaitForExit();

            Console.ReadKey();
        }

        static void CaptureOutpt(object sender, DataReceivedEventArgs e)
        {
            if (e.Data != null)  // e.Data就是python模块的返回值
            {
                Console.WriteLine("计算结果：{0}", e.Data);
            }
        }

    }
}