public class TestSwitch{
public static void main(String[] args){
int score=86;
switch(score/10){
case 9:
System.out.println("优秀");break
case 8:
System.out.println("良好");break
case 7:
System.out.println("中");break
case 6:
System.out.println("及格");break
default:
System.out.println("不及格");
}
}
}