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justhomework/SoftwareDesign/Lab1/1-3a/main.cpp
2022-04-26 14:51:03 +08:00

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