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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):#¼òµ¥µÄÃÜÂëУÑéÂß¼returnself.password=="password123"defcheck_username(self):#¼òµ¥µÄÓû§ÃûУÑéÂß¼returnself.username=="user123"deflogin(self):ifself.validate_credentials():print("µÇ¼ÀÖ³É")else:print("µÇ¼ʧ°Ü£¬Çë¼ì²éÓû§ÃûºÍÃÜÂë")#ʹÓÃʾÀýlogin_system=UserLoginSystem("user123","password123")login_system.login()
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