【基础】练习册52-Python3_优化线程

优化线程

代码如下：

#coding=utf-8

#优化线程：对threads.py多线程的优化

from time import sleep,ctime

import threading

def music(func):

    for i in range(2):

        print('I was listening to %s! %s'%(func,ctime()))

        sleep(2)

def movie(func):

    for i in range(2): 

        print('I was at the %s! %s'%(func,ctime()))

        sleep(5)

#判断类型，并给对应的函数播放

def play(name):

    r = name.split('.')[1]

    if r=='mp3':

        music(name)

    elif r=='mp4':

        movie(name)

    else:

        print("error:The format isn't recognized!")

#name_list = ['last dance.mp3',u'都挺好.mp4']

#name_list的内容数量可随意添加，但必须都加上后缀名

name_list = ['last dance.mp3',u'都挺好.mp4','test.txt']

size = len(name_list)

threads = []

for i in range(size):

    t = threading.Thread(target=play,args=(name_list[i],))

    threads.append(t)

if __name__ == "__main__":

    #启动线程

    '''

    for i in threads:

        i.start()

    for i in threads:

        i.join()'''

    for i in range(size):

        threads[i].start()

    for i in range(size):

        threads[i].join()

print("All end:",ctime())

运行结果为：