hdu_2004 成绩转换

import java.util.Scanner; public class Main {    public static void main(String[] agrs){        Scanner scan = new Scanner(System.in);        while (scan.hasNext()){            int score = scan.nextInt();            if (score < 0 || score > 100) {                System.out.println("Score is error!");            }            else switch (score / 10){                case 0:                case 1:                case 2:                case 3:                case 4:                case 5: System.out.println("E");break;                case 6: System.out.println("D");break;                case 7: System.out.println("C");break;                case 8: System.out.println("B");break;                case 9:                case 10: System.out.println("A");break;            }        }    }}