作业3

# -*- coding: UTF-8 -*-
import time
a=int(raw_input("输入倒计时： ",))
for i in range(a,0,-1):
    print i,
    print '*'*i
    time.sleep(1)
print "off"

 

转载于:https://www.cnblogs.com/china8840/p/8317845.html