From 6c0c372789afbe411ab9e4c30ec3da4612adb1de Mon Sep 17 00:00:00 2001
From: Fuyuxinge <1876397977@qq.com>
Date: Tue, 21 Apr 2026 20:53:20 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E8=87=B3w7=E6=96=87=E4=BB=B6?=
 =?UTF-8?q?=E5=A4=B9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 w7/ScoreAvg.java  | 19 +++++++++++++++++++
 w7/ScoreAvg2.java | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+)
 create mode 100644 w7/ScoreAvg.java
 create mode 100644 w7/ScoreAvg2.java

diff --git a/w7/ScoreAvg.java b/w7/ScoreAvg.java
new file mode 100644
index 0000000..ef862d3
--- /dev/null
+++ b/w7/ScoreAvg.java
@@ -0,0 +1,19 @@
+package w7;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+
+public class ScoreAvg {
+    public static void main(String[] args) throws Exception {
+        BufferedReader br = new BufferedReader(new FileReader("scores.txt"));
+        String line;
+        int sum = 0;
+        int count = 0;
+        while ((line = br.readLine()) != null) {
+            sum += Integer.parseInt(line);
+            count++;
+        }
+        br.close();
+        System.out.println((double) sum / count);
+    }
+}
\ No newline at end of file
diff --git a/w7/ScoreAvg2.java b/w7/ScoreAvg2.java
new file mode 100644
index 0000000..eb8a263
--- /dev/null
+++ b/w7/ScoreAvg2.java
@@ -0,0 +1,36 @@
+package w7;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+
+public class ScoreAvg2 {
+    public static void main(String[] args) {
+        String path = "scores.txt";
+        int sum = 0;
+        int count = 0;
+
+        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
+            String line;
+            while ((line = br.readLine()) != null) {
+
+                try {
+                    sum += Integer.parseInt(line);
+                    count++;
+                } catch (NumberFormatException e) {
+                    System.err.println("跳过无效数字行：" + line);
+                }
+            }
+
+            if (count > 0) {
+                System.out.printf("平均分：%.2f%n", (double) sum / count);
+            } else {
+                System.out.println("未读取到有效成绩");
+            }
+        } catch (IOException e) {
+
+            System.err.println("读取文件失败：" + e.getMessage());
+            e.printStackTrace();
+        }
+    }
+}