threading是一個比較底層的api, 一般來說不用這個包來創(chuàng)建多線程

<h3>1.直接創(chuàng)建多線程</h3>

import time
from threading import Thread

def test():
    print("------昨晚喝多了------")
    time.sleep(1)

for i in range(4):
    t = Thread(target = test)
    t.start()

執(zhí)行結(jié)果:

------昨晚喝多了------
------昨晚喝多了------
------昨晚喝多了------
------昨晚喝多了------

<h3>2.利用thread子類創(chuàng)建多線程</h3>

可以創(chuàng)建個Thread子類,重寫run方法,再調(diào)用子類的start方法,即可開始新線程

import threading, time

class MyThread(threading.Thread):
    def run(self):
        for i in range(3):
            time.sleep(1)
            #self.name 是線程的名字
            msg = "當(dāng)前線程的名字是: " + self.name + " @ " + str(i)
            print(msg)

if __name__ == "__main__":
    t = MyThread()
    t.start()

執(zhí)行結(jié)果:

當(dāng)前線程的名字是: Thread-1 @ 0
當(dāng)前線程的名字是: Thread-1 @ 1
當(dāng)前線程的名字是: Thread-1 @ 2