Python连载31-threading的使用

import _thread as thread

import time

def loop1(in1):

    print("Start loop 1 at:",time.ctime())

    print("我是参数",in1)

    time.sleep(4)

    print("End loop 1 at:",time.ctime())

def loop2(in1,in2):

    print("Start loop 2 at:",time.ctime())

    print("我是参数",in1,"和参数 ",in2)

    time.sleep(4)

    print("End loop 1 at:",time.ctime())

def main():

    print("Starting at:",time.ctime())

    thread.start_new_thread(loop1,("liuming",))

    #上面我们传参的时候，我用的是：（“liuming”），这里面是没有逗号的，结果编译报错，告诉我，这里面必须传入元组

    #因此，我才在里面加了一个逗号，使其变成一个元组

    thread.start_new_thread(loop2,("zhanglei","liuhao"))

    print("All done at:",time.ctime())

if __name__ == "__main__":

    main()

    while True:


        time.sleep(10)

?

def main():

    print("Start at :",time.ctime())

    t1 = threading.Thread(target=loop1,args=("王老大",))

    t1.start()#启动多线程

    t2 = threading.Thread(target=loop2,args=("孙子","好吗"))

    t2.start()

    t1.join()

    t2.join()

    print("End at :",time.ctime())

if __name__ == "__main__":

    main()

def fun():

    print("Start fun")

    time.sleep(2)

    print("End fun")

?

print(‘Main thread‘)

t3 = threading.Thread(target=fun,args=())

t3.setDaemon(True)

t3.start()

time.sleep(1)

print("Main thread End")