40 lines
641 B
C++
40 lines
641 B
C++
// 创建一个基类 Shape，其中包含一个纯虚函数 draw() ，用于绘制形状。从 Shape 派生出 Rectangle 类和 Circle 类，分别实现不同形状的绘制方法
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#include <iostream>
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#include <cstring>
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#include <cstdlib>
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using namespace std;
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class Shape
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{
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public:
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virtual void draw() = 0;
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};
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class Rectangle : public Shape
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{
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public:
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void draw()
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{
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cout << "Rectangle" << endl;
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}
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};
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class Circle : public Shape
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{
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public:
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void draw()
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{
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cout << "Circle" << endl;
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}
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};
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int main()
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{
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Shape *p = new Rectangle;
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p->draw();
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p = new Circle;
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p->draw();
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return 0;
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}
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