為什么這樣會輸出四個結(jié)果，不是只有case1符合嗎而我另一個代碼public class HelloWorld {??? public static void main(String[] args) {?? ??? ?char today='日';?? ??? ?switch(today){?? ??? ???? case '一':?? ??? ???? case '三':?? ??? ???? case '五':?? ??? ???????? System.out.println("吃包子");?? ??? ???????? break;?? ??? ???? case '二':?? ??? ???? case '四':?? ??? ???? case '六':?? ??? ???????? System.out.println("吃油條");?? ??? ???????? break;?? ??? ???? case '日':?? ??? ???????? System.out.println("吃主席套餐");?? ??? ???????? break;?? ??? ???? default:?? ?? ??? ?}?}如果把break去掉，還是只會輸出 吃主席套餐