polymorphismdemo.cpp

来自「《基于Symbian OS的手机开发与应用实践》这本书的配套源码。」· C++ 代码 · 共 32 行

// PolymorphismDemo.cpp : 演示抽象类和纯虚函数演示

#include <stdio.h>

#include "RectangleP.h"
#include "CircleP.h"

//主函数
int main(int argc, char* argv[])
{
	//创建第一个形状
	ShapeP *shape1 = new RectangleP(0, 0, 100, 100);
	shape1->SetName("矩形");
	
	//创建第二个形状
	ShapeP *shape2 = new CircleP(100, 0, 0);
	shape2->SetName("圆形");
	
	//打印面积
	printf("当前形状为：%s\n", shape1->GetName());
	printf("其面积为：%f\n", shape1->CalculateArea());
	printf("当前形状为：%s\n", shape2->GetName());
	printf("其面积为：%f\n", shape2->CalculateArea());
	
	delete shape1;
	shape1 = NULL;
	delete shape2;
	shape2 = NULL;
	return 0;
}