Python多进程之间不共享全局变量

Python多进程之间不共享全局变量

 

import multiprocessing
gl_list=[]
def add_list():
    for i in range(3):
        gl_list.append(i)
    print("子进程的gl_list",gl_list)

def read_list():
    print(gl_list)
# 多进程之间不共享全局变量
if __name__ == '__main__':
    add_process = multiprocessing.Process(target=add_list)
    read_process = multiprocessing.Process(target=read_list)
    add_process.start()
    add_process.join()  #主进程等待add_process执行完毕再执行
    read_process.start()
    print("主进程的gl_list",gl_list)