switch多选择结构

public class SwitchDemo01 {
    public static void main(String[] args) {

        //case穿透  switch匹配具体的一个值
        char grade = ‘A‘;
        switch (grade){
            case ‘A‘:
                System.out.println("优秀");
                break;//可选
            case ‘B‘:
                System.out.println("良好");
                break;
            case ‘C‘:
                System.out.println("及格");
                break;
            case ‘D‘:
                System.out.println("不合格");
                break;
            default:
                System.out.println("不合法");
        }



    }
}