import os

pid = os.fork()

# -*- coding: utf-8 -*-

from multiprocessing import Process
import os

# 这里是子进程要执行的代码
def run_proc(name):
    print(‘Run child process %s (pid=%s)...‘ % (name, os.getpid()))

if __name__==‘__main__‘:
    print(‘Parent process %s.‘ % os.getpid())
    greeting = input(‘hi~‘)
    print(greeting)
    p = Process(target=run_proc, args=(‘MyTest‘,))
    print(‘Child process will start.‘)
    p.start()
    p.join()
    print(‘Child process end.‘)

$python test.py
Parent process 1388.
hi~ hi!
 hi!
Child process will start.
Run child process MyTest (pid=12680)...
Child process end.