定义一个用户类要处理的信息有用户ID、用户密码、email地址。属性私有化对外提供公开的set和get方法提供一个showInfo方法通过这个方法展示用户信息。编写测试程序创建对象调用showInfo方法。

class User:
    def __init__(self, user_id, password, email):
        self.__user_id = user_id
        self.__password = password
        self.__email = email
    
    def get_user_id(self):
        return self.__user_id
    
    def set_user_id(self, user_id):
        self.__user_id = user_id
    
    def get_password(self):
        return self.__password
    
    def set_password(self, password):
        self.__password = password
    
    def get_email(self):
        return self.__email
    
    def set_email(self, email):
        self.__email = email
    
    def show_info(self):
        print("User ID:", self.__user_id)
        print("Password:", self.__password)
        print("Email:", self.__email)


# 测试程序
user = User("123456", "password123", "example@example.com")
user.show_info()

输出结果:

User ID: 123456
Password: password123
Email: example@example.com
``