33 lines
797 B
C++
33 lines
797 B
C++
/*
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* @Author: iR
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* @Date: 2022-03-15 07:30:23
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* @LastEditors: iR
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* @LastEditTime: 2022-03-15 17:05:13
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* @FilePath: \Code\1-3a\main.cpp
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* @Description:
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* @Mail: i@iridium.cyou
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*/
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#include <iostream>
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using namespace std;
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class Parent
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{ // 基类
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public:
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void f1() { cout << "This is parent-f1" << endl; }
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virtual void f2() { cout << "This is parent-f2" << endl; } // 声明f2是虚函数
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} parent;
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class Child : public Parent
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{ // 派生类
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public:
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void f1() { cout << "This is child-f1" << endl; }
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void f2() { cout << "This is child-f2" << endl; }
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} child;
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int main(int argc, char *argv[])
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{
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Parent *p = new Child; // 定义一个基类指针
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p->f1(); // 执行哪个f1？
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p->f2(); // 执行哪个f2？
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delete p;
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return 0;
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} |