python多进程与多线程的简单区分

import multiprocessing

import time

zero = 0

def change_zero():   

global zero   

for i in range(3):       

zero = zero + 1       

print(multiprocessing.current_process().name, zero)

if __name__ == '__main__':   

p1 = multiprocessing.Process(target = change_zero)   

p2 = multiprocessing.Process(target = change_zero)   

p1.start()   

p2.start()   

p1.join()   

p2.join()   

print(zero)