package w5进阶版;

// 测试
public class TestUSB {
    public static void main(String[] args) {
        // 创建电脑对象
        Computer myComputer = new Computer();

        // 创建USB设备
        USB mouse = new Mouse();
        USB keyboard = new Keyboard();

        // 插入不同设备
        myComputer.useUSB(mouse);
        myComputer.useUSB(keyboard);
    }
}