为什么通过用户类中的属性连接的Privileges类不能正常工作？

Question

基本上，我一直在和班级一起工作，从Python速成课程这本书中了解他们，有两个问题我必须回答；第一个是关于制作一个程序来识别用户是否是管理员，如果他们是管理员，代码应该打印出来，他们有额外的特权，第二个代码是相同的，但我必须制作一个额外的类，称为特权，这是用户类中的一个属性。但是代码做了同样的事情（），它只是更干净

我的第一个代码（有效的代码！）：

class User:

    def __init__(self, first_name, last_name, address, phone_number):
        self.first_name = first_name
        self.last_name = last_name
        self.full_name = first_name + " " + last_name
        self.address = address
        self.phone_number = phone_number
        self.privileges = ["can add post", "can delete post", "can ban user"]

    def describe_user(self):
        print("\nName: " + self.full_name.title() + 
              "\nAddress: " + self.address.title() +
              "\nphone_number: " + str(self.phone_number))

    def greet_user(self):
        print("\nGreetings " + self.first_name.title() + ".")

    def show_privileges(self):
        print()
        if self == Admin:
            for privilege in self.privileges:
                print(privilege)
        else:
            print("Sorry but you are not the Admin." +
                "\nYou have limited privileges.")

Admin = User('Nebojsa', 'Kukic', 'A box under the bridge', 353838935494)
Admin.show_privileges()

user_2 = User("Siobhan", "O'Neill", "66 The Hermitage", 353831681859)
user_2.show_privileges()

输出：

can add post
can delete post
can ban user

Sorry but you are not the Admin.
You have limited privileges.

如您所见，假设self在条件测试中等于Admin或user2，但由于我的另一段代码（不起作用的代码：'（）：

class Privileges:

    def __init__(self):
        self.user_privileges = ["can add post", "can delete post", "can ban user"]

    def show_privileges(self):
        print()
        if self == Admin:
            for user_privilege in self.user_privileges:
                print(_user_privilege)
        else:
            print("Sorry but you are not the Admin." +
                  "\nYou have limited privileges.")


class User:

    def __init__(self, first_name, last_name, address, phone_number):
        self.first_name = first_name
        self.last_name = last_name
        self.full_name = first_name + " " + last_name
        self.address = address
        self.phone_number = phone_number
        self.privileges = Privileges()

    def describe_user(self):
        print("\nName: " + self.full_name.title() + 
              "\nAddress: " + self.address.title() +
              "\nphone_number: " + str(self.phone_number))

    def greet_user(self):
        print("\nGreetings " + self.first_name.title() + ".")


Admin = User('Nebojsa', 'Kukic', 'A box under the bridge', 353838935494)
Admin.privileges.show_privileges()

user_2 = User("Siobhan", "O'Neill", "66 The Hermitage", 353831681859)
user_2.privileges.show_privileges()

输出：

Sorry but you are not the Admin.
You have limited privileges.

Sorry but you are not the Admin.
You have limited privileges.

我不明白为什么管理实例不返回：

can add post
can delete post
can ban user

但结果却是：

Sorry but you are not the Admin.
You have limited privileges.

我不明白为什么自我不等于管理？ 再次抱歉，问题太长了，谢谢

Answer 1

首先，这不是一个好方法

但是无论如何，self不是等于Admin，这是一个User对象self将是Privileges对象。。。更好的方法是创建一个布尔属性，说明是否有管理员权限，例如：

class Privileges:
    def __init__(self, is_admin=False):
        self.user_privileges = ["can add post", "can delete post", "can ban user"]
        self.is_admin = is_admin

    def show_privileges(self):
        print()
        if self.is_admin:
            for user_privilege in self.user_privileges:
                print(user_privilege)
        else:
            print("Sorry but you are not the Admin." +
                  "\nYou have limited privileges.")