import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println("请输入姓名:"); String name = scanner.nextLine(); System.out.println("请输入第一次考试成绩:"); double score1 = scanner.nextInt(); System.out.println("请输入第二次考试成绩:"); double score2 = scanner.nextInt(); if (score2==score1) { System.out.printf("成绩没有变化"); } else if(score2>score1){ System.out.printf("成绩下降了%.3f%%",100*(score2-score1)/score1); } else{ System.out.printf("成绩下降了%.3f%%",100*(score1-score2)/score1); } } }
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