package com.itranswarp.learnjava;

import java.util.Scanner;

/**

 * 输入上次考试成绩（int）和本次考试成绩（int），然后输出成绩提高的百分比，保留两位小数位（例如，21.75%）

 */

public class Main {

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

System.out.print("输入上次考试成绩: ");

int prev = scanner.nextInt();

System.out.print("输入本次考试成绩: ");

int score = scanner.nextInt();

double result = (double)(score - prev) / score * 100;

System.out.printf("成绩提高了%.2f%%\n", result);

}

}