python基础学习19,01

听说python入门很容易，所以想试试对我这个零基础会不会很友好呢。做随笔也顺便督促自己不要轻易放弃学习。

#登录接口
print("请输入用户名密码")

_username = "sun"
_password = "123"

count = 0
while count < 3:
    username = input("用户名:")
    password = input("密码:")
    if _username == username and _password == password:
        print("恭喜{name}登录成功！".format(name=username))
        break
    elif _username != username:
        print("用户名错误!")
    else:
        print("密码错误！")
    count += 1
    if count == 3:
        print("已锁定！")