第4周作业-打字成绩判断程序—修改

import java.util.Scanner;
public class TouchType
{
public static  void main(String[] args)
{
double Score;
Scanner input = new Scanner(System.in);
System.out.println("请输入分数");
while(true){
Score = input.nextDouble();
if(Score<=15 )
System.out.println("不及格");
else
if(Score<=30)
System.out.println("及格");
else
if(Score<=60)
System.out.println("良好");
else
System.out.println("优秀");

}
}
}