2.账号密码登录三次机会

user_name = 'yasuo'
password = '888'
i = 3
while i > 0:
  zh = input("请输入你的账号:")
  i -= 1
  if zh == user_name:
      mm = input("请输入你的密码:")
      if mm == password:
         print("登陆中,请稍等...")
         print('''恭喜你登录成功!
           欢迎用户进入
           用户名:%s
           密码  :%s'''%(zh,mm))
         break
      else:
         print("密码错误,请重新输入!")
         if i == 0:
             print("你没有机会了!")
             answer = input("再试试?Y or N")
             if answer == "Y":
              i = 3
         print("你还有"+str(i)+"次机会")
  else:
      print("请输入正确的用户名!")
      if i == 0:
         print("你没机会了!")
         answer =input("再试试?Y or N")
         if answer == "Y":
          i = 3
      print("你还有"+str(i)+"次机会")
else:
  print("你TM要不要脸?一直错还输?")

  

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转载自www.cnblogs.com/8856S/p/9657550.html