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作业：计算成绩提高百分比

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韬韬蒙塔基

#1 Created at ... [Delete] [Delete and Lock User]

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

         Scanner scanner = new Scanner(System.in);

         System.out.print("请输入上次考试成绩：\n");

         int lastscore = scanner.nextInt();

         System.out.print("请输入本次考试成绩：\n");

         int score = scanner.nextInt();

         double s = (score - lastscore)/(double)lastscore*100;

         System.out.printf("成绩提高百分比：%.2f%%",s);

    }

}

韬韬蒙塔基

#2 Created at ... [Delete] [Delete and Lock User]

...用（double）还是*100.0好呢？

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