将jenkins变量传给python脚本

import os

def get_jenkins_env(env_name):
    return os.environ[env_name]

if __name__ == '__main__':
    print('---------------------')
    print('jenkins_environment',get_jenkins_env('SERVICES'))
    print('---------------------')

@echo off
path\python.exe path/get_jenkins_env.py
pause

pipeline {
    agent any
    environment {
        SERVICES = "myservices"
    }
    stages {
        stage('执行bat文件'){
            steps {
              bat '''path\\batname.bat'''
              }
        }
    }
}