三次锁定

username = "jyx,alex,zms"
password = "123,456,789"
count = 0
while True:
    if  count < 3:
        name = input("用户名：")
        passwd = input("密码：")
        if name == username and password ==passwd:
            print("登陆成功")
            break
        else:
            print("登陆失败")
            count  += 1
    else:
        print("用户锁定")
        break