while死循环

有一种循环叫死循环,一经触发,就运行个天荒地老、海枯石烂。

count = 0
while True:
    print("count:",count)
    count +=1 #count = count + 1

while死循环猜年龄

#!/usr/bin/env python
# -*- coding:utf-8 -*-
#判断age_of_sd是否等于31,如果等于直接跳出循环,如果连续输错3次也会跳出循环。
age_of_sd = 31
count = 0
while True:
    if count == 3 :
        break #跳出循环
    guess_age = int(input("guess age:"))
    if guess_age == age_of_sd:
        print("Yes,you got it")
        break
    elif guess_age > age_of_sd:
        print("Think smaller..")
    else:
        print("Think bigger..")
        count += 1

while死循环猜年龄优化版

#!/usr/bin/env python
# -*- coding:utf-8 -*-
age_of_sd = 31 #首先定义一个固定的变量值用于比较
count = 0 #定义循环次数,初始为0
while count < 3: #当count 小于 3的时候循环开始,否则停止循环
    guess_age = int(input("guess age of :")) #以数字整形方式输入内容
    if guess_age == age_of_sd: #如果输入内容等于之前定义的变量值,则跳出循环
        print("Yes,you got it !")
        break
    elif guess_age > age_of_sd: #如果输入的内容大于之前定义的变量值,则循环继续
        print("Try smaller...")
    else:                        #如果输入的内容小于之前定义的变量值,则循环继续
        print("Try bigger!")
    count += 1
#if count == 3:         #当循环到第三次结束的时候,打印定义好的内容
else:                   #此处的else 相当于上面的 if count == 3
    print("Try too many")

 while用户自定义循环次数

#!/usr/bin/env python
# -*- coding:utf-8 -*-
#判断age_of_sd是否等于31,如果等于直接跳出循环,如果连续输错3次也会跳出循环.
age_of_sd = 31
count = 0 while count < 3 : guess_age = int(input("guess age:")) if guess_age == age_of_sd: print("Yes,you got it") break elif guess_age > age_of_sd: print("Think smaller..") else: print("Think bigger..") count += 1 #如果上面的while count < 3不成立,则执行第二次判断,是否继续执行循环, # 如果输入n,则跳出循环,如果输入其他,则循环继续。 if count == 3 : countine_confirm = input("Do you wang to keep guessing? ") if countine_confirm != 'n': count = 0

 

posted @ 2017-06-04 18:39  七天&七天  阅读(3851)  评论(0编辑  收藏  举报