package w5进阶版;

// 键盘
public class Keyboard implements USB {
    @Override
    public void open() {
        System.out.println("⌨️  键盘已连接并打开");
    }

    @Override
    public void close() {
        System.out.println("⌨️  键盘已关闭并断开");
    }
}