diff --git a/W7/ScoreAverage.java b/W7/ScoreAverage.java
new file mode 100644
index 0000000..3083a5e
--- /dev/null
+++ b/W7/ScoreAverage.java
@@ -0,0 +1,82 @@
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+public class ScoreAverage {
+    public static void main(String[] args) {
+        String fileName = "scores.txt";
+        int sum = 0;
+        int count = 0;
+
+        // 尝试找到文件
+        File file = findFile(fileName);
+
+        if (file == null) {
+            System.err.println("错误：找不到文件 " + fileName);
+            System.err.println("请将 " + fileName + " 放在以下任意位置：");
+            System.err.println("  1. " + System.getProperty("user.dir"));
+            System.err.println("  2. " + System.getProperty("java.class.path") + " 目录下");
+            System.err.println("\n或者使用绝对路径创建文件。");
+            return;
+        }
+
+        // 使用 try-with-resources 自动关闭流
+        try (BufferedReader br = new BufferedReader(new FileReader(file))) {
+            String line;
+            while ((line = br.readLine()) != null) {
+                // 跳过空行
+                if (line.trim().isEmpty()) {
+                    continue;
+                }
+                try {
+                    int score = Integer.parseInt(line.trim());
+                    sum += score;
+                    count++;
+                } catch (NumberFormatException e) {
+                    // 数字格式错误处理
+                    System.err.println("数字格式错误，忽略无效行: " + line);
+                }
+            }
+
+            // 计算并输出平均分
+            if (count > 0) {
+                double average = (double) sum / count;
+                System.out.println("成功读取 " + count + " 个成绩");
+                System.out.println("总分: " + sum);
+                System.out.println("平均分: " + average);
+            } else {
+                System.out.println("错误：没有有效的成绩数据。");
+            }
+
+        } catch (IOException e) {
+            System.err.println("读取文件时出错: " + e.getMessage());
+        }
+    }
+
+    // 辅助方法：在多个位置查找文件
+    private static File findFile(String fileName) {
+        // 1. 当前工作目录
+        File file = new File(fileName);
+        if (file.exists()) {
+            return file;
+        }
+
+        // 2. 用户主目录
+        file = new File(System.getProperty("user.home"), fileName);
+        if (file.exists()) {
+            return file;
+        }
+
+        // 3. 桌面目录
+        file = new File(System.getProperty("user.home") + "/Desktop", fileName);
+        if (file.exists()) {
+            return file;
+        }
+
+        return null;
+    }
+}
diff --git a/W7/score成功形式.png b/W7/score成功形式.png
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diff --git a/W7/score报错形式.png b/W7/score报错形式.png
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