第6周作业2-IF语句大显身手之成绩判断

import java.util.Scanner;
public class GradeIf {
public static void main(String[] args){
while(true){
System.out.println("请输入分数：");
Scanner sc=new Scanner(System.in);
int t=sc.nextInt();
if(t>=85)
System.out.println("A级");
else
if(t>=70)
System.out.println("B级");
else
if(t>=60)
System.out.println("C级");
else
if(t<60)
System.out.println("D级");
}
}
}