C++调用父类同名函数方法

#include <iostream>
using namespace std;

class Parent {
public:
    void show() {
        cout << "Parent's show()" << endl;
    }
};

class Child : public Parent {
public:
    void show() {
        Parent::show();  // 调用父类的 show()
        cout << "Child's show()" << endl;
    }
};

int main() {
    Child c;
    c.show();  // 输出：Parent's show() 和 Child's show()
    return 0;
}

class Parent {
public:
    void func(int x) {
        cout << "Parent::func(int): " << x << endl;
    }
};

class Child : public Parent {
public:
    using Parent::func;  // 引入父类所有 func 重载

    void func(double x) {
        cout << "Child::func(double): " << x << endl;
    }
};

int main() {
    Child c;
    c.func(5);      // 可以调用 Parent::func(int)
    c.func(3.14);   // 调用 Child::func(double)
    return 0;
}

class Shape {
public:
    virtual void draw() {
        cout << "Drawing basic shape" << endl;
    }
    virtual ~Shape() = default;
};

class Circle : public Shape {
public:
    void draw() override {
        Shape::draw();  // 先执行父类逻辑
        cout << "Drawing a circle" << endl;
    }
};