从后台代码启动命令行exe (ngrok)的正确方法

import subprocess

def start_ngrok():
    try:
        # 启动ngrok命令行
        ngrok_process = subprocess.Popen(['path/to/ngrok.exe', 'command'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        # 获取命令行输出
        output, error = ngrok_process.communicate()
        # 检查是否启动成功
        if ngrok_process.returncode == 0:
            print("ngrok启动成功")
        else:
            print("ngrok启动失败")
            print(error.decode('utf-8'))
    except Exception as e:
        print("启动ngrok时发生错误：", str(e))

# 调用函数启动ngrok
start_ngrok()