python入门:最基本的用户登录用户登录,三次错误机会
1 #!/usr/bin/env python 2 # -*- coding:utf-8 -*- 3 #用户登录,三次错误机会 4 """ 5 导入getpass,给x赋值为1,while真,循环开始, 6 user的赋值等于用户输入的内容,pwd的赋值等于用户输入的内容并且不可见 7 如果用户输入user的赋值等于"admin"而且用户输入pwd的赋值等于"admin888" 8 打印"login successfully!(登陆成功!)"换行 打印"welcome!:(欢迎:)user",break跳出当前循环 9 否则如果x的赋值等于3,打印"Failure three times!(失败三次!)"break跳出当前循环 10 否则打印"login failure!There are three more chances!(登录失败!有三次机会)" 11 x的赋值每循环一次加1,当循环3次后就满足了x赋值为3,break跳出当前循环! 12 """ 13 import getpass 14 x = 1 15 while True: 16 user = raw_input("user:") 17 pwd = getpass.getpass('password:') 18 if user == "admin" and pwd == "admin888": 19 print("login successfully!" + "\n" +"welcome!:" + user) 20 break 21 elif x == 3: 22 print("Failure three times!") 23 break 24 else: 25 print("login failure!There are three more chances!") 26 x += 1