templates:父类成员变量在继承的类中不可见

#include <iostream>

// 父类
class Animal {
public:
    int member_var;
};

// 子类
class Dog : public Animal {
public:
    // 重新实现父类的成员变量
    int member_var;
};

int main() {
    Animal animal;
    Dog dog;

    // 访问成员变量
    animal.member_var = 10;
    dog.member_var = 20;

    std::cout << "Animal member var: " << animal.member_var << std::endl;
    std::cout << "Dog member var: " << dog.member_var << std::endl;

    return 0;
}

class Animal:
    def __init__(self):
        self.member_var = 10

class Dog(Animal):
    def __init__(self):
        super().__init__()  # 正确调用父类的构造方法

dog = Dog()
print(dog.member_var)  # 输出：20