Python登陆接口

实现的功能：

1、输入用户名密码

2、认证成功后显示欢迎信息

3、输错三次后锁定

username = "abc"
password = "123"

username_input = input("username:")
if username_input == username:
    for i in range(4):
        if i == 3:
            print("{_username}".format(_username = username_input) + " was locked.")
            break
        password_input = input("password:")
        if password_input == password:
            print("Welcome to {_username}".format(_username = username_input) + "'s blog!!!")
            break
        else:
            print("Password error, please input again!")
            continue
else:
    print("User {_userNotExist}".format(_userNotExist=username_input) + " is not exist.")