python替换文件名

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import os

import random

import time

while True:

num = str(random.randint(0,20))

imageID = '852bf6fcb551998f68b1bf87ad090b77.jpg'

path = 'E:\wallpapercache\img\'

os.rename(path + num + '.jpg', path + imageID)

time.sleep(66)

os.rename(path + imageID, path +num + '.jpg')