public class HelloWorld { public static void main(String[] args) { String 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("吃油条");break;
default:
    System.out.println("吃主席套餐");break;
}
} }