Java学习day15

package structure;

import java.util.Scanner;

//if多选择结构
public class Demo03 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("请输入成绩：");
        double score = scanner.nextDouble();

        if (score==100){
            System.out.println("恭喜你满分！");
        }else if (score<100 &&score>=90){
            System.out.println("优秀");
        }else if (score<90 &&score>=70){
            System.out.println("良好");
        }else if (score<70 &&score>=60){
            System.out.println("及格");
        }else if (score<60 &&score>=0){
            System.out.println("不及格");
        }else {
            System.out.println("输入的成绩不规范！");
        }
        scanner.close();
    }
}