python中的线程threading.Thread()

import threading
import time


def saySorry(i):
    if int(i)%2==0:
        time.sleep(3)
    print("亲爱的，我错了，我能吃饭了吗？", str(i))

if __name__ == "__main__":
    for i in range(5):
        t = threading.Thread(target=saySorry,args=(i,))
        t.start()  # 启动线程，即让线程开始执行