From 7de250525555526b21bd5cdc2c88c08e229bdd00 Mon Sep 17 00:00:00 2001
From: zhouzihao <georgezhouzihao@163.com>
Date: Mon, 20 Apr 2026 22:07:27 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?=
 =?UTF-8?q?=20'W7=E5=91=A8=E6=A2=93=E6=B5=A9202506050319'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 W7周梓浩202506050319/score.java | 48 ++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 W7周梓浩202506050319/score.java

diff --git a/W7周梓浩202506050319/score.java b/W7周梓浩202506050319/score.java
new file mode 100644
index 0000000..9b61fdd
--- /dev/null
+++ b/W7周梓浩202506050319/score.java
@@ -0,0 +1,48 @@
+import java.io.*;
+
+/*原始代码
+BufferedReader br=new BufferedReader(new FileReader("score.txt"))
+String line;
+while((line=br.readLine())!=null){
+    sum += Integer.parseInt(line)
+}
+br.close()
+ */
+
+
+//修改后的代码
+public class score {
+    public static void main(String[] args){
+        //使用try()-with-resources确保文件自动关闭
+        try(BufferedReader br=new BufferedReader(new FileReader("score.txt"))){
+            double sum=0;
+            int count=0;
+            String line;
+            while((line=br.readLine())!=null){
+                try{
+                    sum += Integer.parseInt(line);
+                    count++;
+                } catch (NumberFormatException e) {
+                    System.out.println("数字格式错误");
+                }
+            }
+
+            //计算平均数
+            if (count>0){
+                double average=sum/count;
+                System.out.println("平均分是"+average);
+            }
+            else{
+                System.out.println("计数不符合规范，没有平均数");
+            }
+        }
+        //最外层的catch
+        catch (FileNotFoundException e){
+            System.out.println("文件不存在");
+        }
+        //同样也是最外层的catch
+        catch (IOException e){
+            System.out.println("读取文件发生错误");
+        }
+    }
+}
\ No newline at end of file