day02_while循环

Day02_while循环

1、输入三次密码错误，自动退出

• 先拆分功能

1. 循环部分功能
   三次循环

点击查看代码

count = 1
while count <= 3:
    print(count)
    count += 1

2. 密码部分功能

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user = input("请输入用户名：")
pwd = input("请输入密码：")
if user == "li" and pwd == "123":
     print("成功登录")
else:
     print("密码或用户名错误！！！")

3. 最终结果

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count = 1
while count <= 3:
    user = input("请输入用户名：")
    pwd = input("请输入密码：")
    if user == "li" and pwd =="123":
        print("登陆成功！")
    else:
        print("登陆失败")
    if count ==3:
         print("错误次数超限，请联系管理员")
         break
     count += 1

2、猜年龄游戏，每猜3次，询问是否继续

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count = 0
while True:
    v1 = int(input("请输入年龄："))
    if v1 == 18:
      print("猜对了！")
      break
    else:
        count = count + 1
        if count == 3:
            axg = input("你想继续吗？")
            if axg == "yes":
                count = 0
                continue
            elif axg == "no":
                break