1-1 编写登陆接口

 
 

1.需求

编写登陆接口

输入用户名密码
认证成功后显示欢迎信息
输错三次后锁定

  

2.自己思路

定义user_database

用户输入

if 成功:
    print welcome!!!

else  失败
      print 继续输入

      用户输入      
       if 成功:
            print welcome!!!

      else  失败
            print 继续输入
      
        继续循环            

  

 

 3.代码清单

# coding=utf-8

user_database = [['alex','123']]
count = 0
for i in range(3):
    username = input("enter your username: ")
    passwd = input("enter your passwd: ")
    if [username,passwd] in user_database:
        print("welcome")
        break
    else:
        print("again...")
        count += 1
        if count >2 :
            print("myou have try enough...fuck off")

 

4.运行结果

running successfully

running failed

原文地址:https://www.cnblogs.com/venicid/p/7240659.html