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("吃油条") ；
                    break;
                case'日':
                default:
                    System.out.println("吃主席套餐");
            }
        }
}