1用switch語句從控制檯輸入100以內的分數判斷優秀，良好，及格不及格屬於哪一個區間
public static void main(String[] args) {
System.out.println("請輸入成績");
Scanner scanner=new Scanner(System.in);
int num=scanner.nextInt();
switch(num/10) {
case 10:
System.out.println("滿分");
break;
case 9:
System.out.println("成績為優秀
break;
case 8:
case 7:
System.out.println("成績為良好秀");
break;
case 6:
System.out.println("成績為及格秀");
break;
case 0:
case 1:
case 2:
case 3:
case 4:
case 5:
System.out.println("成績為不及格");
break;
default:
System.out.println("請輸入有效成績");
break;
}
scanner.close();
}