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/**
* 测试类:包含drawShape()方法,统一调用draw()
*/
public class TestShape {
// 统一绘制图形的方法
public static void drawShape(Shape s) {
s.draw(); // 多态调用:执行子类重写的draw()
}
public static void main(String[] args) {
// 创建不同图形对象
Shape circle = new Circle();
Shape rectangle = new Rectangle();
// 调用统一方法绘制
drawShape(circle);
drawShape(rectangle);
}
}