
	public void choiceItem(Scanner sc,List<Clock> clocks){
		System.out.println(
				"请选择:" +
				"1.添加闹钟" +
				"2.删除闹钟" +
				"3.修改闹钟" +
				"4.查看闹钟" +
				"5.退出系统");
		int input = sc.nextInt();
		switch(input){
		case 1:addClock(sc,clocks);break;
		case 2:delClock(sc, clocks);break;
		case 3:setClock();break;
		case 4:checkClock(clocks);break;
		case 5:quit();break;
			default:break;
		}
	}


