喿辶臿辶喿辶喿节奏美学：神秘代码的生活应用,示例分析classUserLoginSystem:def__init__(self,username,password):self.username=usernameself.password=passworddefvalidate_credentials(self):ifnotself.usernameornotself.password:returnFalsereturnself.check_password()andself.check_username()defcheck_password(self):#简单的密码校验逻辑returnself.password=="password123"defcheck_username(self):#简单的用户名校验逻辑returnself.username=="user123"deflogin(self):ifself.validate_credentials():print("登录成功")else:pri