#include <iostream>

using namespace std;
class father {
public:
    father() {}
    ~father() {}
    virtual void func1() {
        func2();
    }

    virtual void func2() {
        cout << "AAAAA";
    }
};

class son : public father {
public:
    son() {}
    ~son() {}
    void func1(int i) {
        cout << "BBBBB";
    }

    void func2() {
        cout << "CCCCC";
    }
};

int main() {
    father* fa = new son();
    fa->func1();
    // son* son  = new father();  // 禁止的操作，父類指針可以指向子類對(duì)象,子類指針不能指向父類對(duì)象
return 0;
}

輸出：

CCCCC

總結(jié)參考：https://blog.csdn.net/u010164190/article/details/104507528/