Rendering menu glyphs is slightly trickier - The Old New Thing (microsoft.com)https://devblogs.microsoft.com/oldnewthing/20050802-13/?p34743 Raymond Chen 2005年08月02日 上次,我们看到了如何绘制有主题和无主题的单选按钮,我提到菜单位图更…
多态
虚函数 先来看一段代码: #include<iostream>
using namespace std;class Animal {
public :void run() {cout << "I dont know how to run" << endl;}
};class Cat : public Animal{
public :void run() {cout << "I …