进程锁 Lock

进程锁其实是锁的输入终端，屏幕，太多的进程，为了防止打印错乱而锁，作用不大

from multiprocessing import Process, Lock

def f(l, i):
    l.acquire()

    print('hello world', i)

    l.release()

if __name__ == '__main__':
    lock = Lock()

    for num in range(10):
        Process(target=f, args=(lock, num)).start()

　　...