多进程

import time
import multiprocessing

def test1():
    while True:
        print('---1----')
        time.sleep(1)


def test2():
    while True:
        print('---2----')
        time.sleep(1)


def main():
    p1 = multiprocessing.Process(target=test1)
    p2 = multiprocessing.Process(target=test2)
    p1.start()
    p2.start()

if __name__ == '__main__':
    main()