import multiprocessing
import time
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()