进程间的同步：
from multiprocessing import Process, Lock def f(l, i): l.acquire() try: print(‘hello world‘, i) finally: l.release() if __name__ == ‘__main__‘: lock = Lock() for num in range(10): Process(target=f, args=(lock, num)).start()
原文：https://www.cnblogs.com/chenhaiming/p/9919409.html