import java.util.Scanner; public class AverageInput { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.print("請輸入學生人數: "); int length = scanner.nextInt(); float[] score = new float[length]; // 動態配置長度 for(int i = 0; i < score.length; i++) { System.out.print("輸入分數："); float input = scanner.nextFloat(); score[i] = input; } System.out.print("\n分數："); float total = 0; for(int i = 0; i < score.length; i++) { total = total + score[i]; System.out.print(score[i] + " "); } System.out.printf("\n平均：%.2f", total / score.length); } }