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 sc = new Scanner(System.in); int prev = sc.nextInt(); int score = sc.nextInt(); double percent = (double)(score - prev)/prev; System.out.printf("成绩提高了%4.2f%%",percent); } }
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