From 1fd5e57c6afee0089893d8bbf902ec3bf03eb54e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?romantic=E8=89=BE=E5=85=8B?= <3023493319@qq.com>
Date: Tue, 2 Mar 2021 01:27:07 +0800
Subject: [PATCH] Update 12.6.md (#785)
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我觉得true 并没有什么用 谁可以解释一下
---
 eBook/12.6.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/eBook/12.6.md b/eBook/12.6.md
index e778705..095ce31 100644
--- a/eBook/12.6.md
+++ b/eBook/12.6.md
@@ -7,7 +7,7 @@ func cat(f *os.File) {
 	const NBUF = 512
 	var buf [NBUF]byte
 	for {
-		switch nr, err := f.Read(buf[:]); true {
+		switch nr, err := f.Read(buf[:]);  {
 		case nr < 0:
 			fmt.Fprintf(os.Stderr, "cat: error reading: %s\n", err.Error())
 			os.Exit(1)