C++之——模板方法
#include <iostream>
using namespace std;
class Shape {//抽象类
public:
void begin() { cout << "绘图开始" << endl; }
void end() { cout << "绘图结束" << endl; }
virtual void draw() = 0;//纯虚函数
void paint() {//模板方法
begin();
draw();
end();
}
};
class Circle :public Shape {
public:
void draw() {
cout << "Draw a cirle" << endl;
}
};
int main(int argc, char argv[]) {
Shape *pObj = new Circle();
pObj->paint();
delete pObj;
system("pause");
return EXIT_SUCCESS;
}