import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); // 创建Scanner对象 System.out.print("请输入上次考试成绩: "); // 打印提示 int score1 = scanner.nextInt(); // 读取一行输入并获取字符串 System.out.print("请输入本次考试成绩: "); // 打印提示 int score2 = scanner.nextInt(); // 读取一行输入并获取整数 System.out.printf("小明同学成绩提高: %.2f%%\n", (double) score2 * 100 / score1 - 100); // 格式化输出 } }
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