From e59f48c47947713c8a6e7d503eba50e94fec2650 Mon Sep 17 00:00:00 2001
From: NormanIsComming <133320720+NormanIsComming@users.noreply.github.com>
Date: Wed, 21 May 2025 14:58:31 +0800
Subject: [PATCH] =?UTF-8?q?Update=2021.=E6=96=87=E4=BB=B6=E8=AF=BB?=
 =?UTF-8?q?=E5=86=99=E5=92=8C=E5=BC=82=E5=B8=B8=E5=A4=84=E7=90=86.md--?=
 =?UTF-8?q?=E8=B0=83=E6=95=B4=E5=BE=AA=E7=8E=AF=E8=AF=BB=E5=8F=96=E7=9A=84?=
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MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Day21-30/21.文件读写和异常处理.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Day21-30/21.文件读写和异常处理.md b/Day21-30/21.文件读写和异常处理.md
index 4d46f94..595f653 100755
--- a/Day21-30/21.文件读写和异常处理.md
+++ b/Day21-30/21.文件读写和异常处理.md
@@ -231,7 +231,7 @@ try:
         data = file1.read(512)
         while data:
             file2.write(data)
-            data = file1.read()
+            data = file1.read(512)
 except FileNotFoundError:
     print('指定的文件无法打开.')
 except IOError: