上传文件至 'w7'

w7/ScoreCalculator.java

@@ -0,0 +1,38 @@
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+
+public class ScoreCalculator {
+    public static void main(String[] args) {
+        int sum = 0;
+        int count = 0;
+
+        try (BufferedReader br = new BufferedReader(new FileReader("scores.txt"))) {
+            String line;
+            while ((line = br.readLine()) != null) {
+                line = line.trim();
+                if (line.isEmpty()) continue;
+
+                try {
+                    int score = Integer.parseInt(line);
+                    sum += score;
+                    count++;
+                } catch (NumberFormatException e) {
+                    System.err.println("警告：跳过无效数字格式的行 —— " + line);
+                }
+            }
+        } catch (IOException e) {
+            System.err.println("错误：文件读取失败 —— " + e.getMessage());
+            return;
+        }
+
+        if (count == 0) {
+            System.err.println("错误：未找到任何有效分数，无法计算平均分。");
+            return;
+        }
+
+        double average = (double) sum / count;
+        System.out.println("总分：" + sum);
+        System.out.println("平均分：" + String.format("%.2f", average));
+    }
+}