From d6c02705947fa08ad259e263c2f4b3a69d3bb079 Mon Sep 17 00:00:00 2001
From: zhangkunqiu <2747209206@qq.com>
Date: Thu, 7 May 2026 12:37:32 +0800
Subject: [PATCH] ScoreAverage

---
 w7/ScoreAverage.java | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 w7/ScoreAverage.java

diff --git a/w7/ScoreAverage.java b/w7/ScoreAverage.java
new file mode 100644
index 0000000..ff43a9c
--- /dev/null
+++ b/w7/ScoreAverage.java
@@ -0,0 +1,36 @@
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+
+public class ScoreAverage {
+    public static void main(String[] args) {
+        String filePath = "scores.txt";
+        int sum = 0;
+        int count = 0;
+
+        try (BufferedReader br = new BufferedReader(new FileReader(filePath))) {
+            String line;
+            while ((line = br.readLine()) != null) {
+                line = line.trim();
+                if (line.isEmpty()) continue;
+                
+                try {
+                    sum += Integer.parseInt(line);
+                    count++;
+                } catch (NumberFormatException e) {
+                    System.err.println("无效成绩：" + line);
+                }
+            }
+
+            if (count > 0) {
+                double avg = (double) sum / count;
+                System.out.println("平均分：" + avg);
+            } else {
+                System.out.println("无有效成绩数据");
+            }
+
+        } catch (IOException e) {
+            System.err.println("文件读取失败：" + e.getMessage());
+        }
+    }
+}
\ No newline at end of file