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");

case '二':

case '四':

case '六':

System.out.println("吃油条");

default:

System.out.println("吃主席套餐");

}

}

}