问无法理解它的工作原理周一:周五：

EN

import java.time.LocalDate;
import static java.time.DayOfWeek.*;
public class Test 
{
    public static void main(String[] args) 
    {
        var today=LocalDate.now().with(WEDNESDAY).getDayOfWeek();
        switch(today)
        {
            case SUNDAY:
            case SATURDAY:
                System.out.println("Enjoy");
                break;
            case MONDAY : FRIDAY:
                System.out.println("Boaring");
            default:
                System.out.println("QuestionMark");
        }       
    }
}

case MONDAY : FRIDAY: