From 4550d7d342507f5e886945effc085382be537807 Mon Sep 17 00:00:00 2001
From: riba2534 <riba2534@qq.com>
Date: Sat, 2 Feb 2019 21:15:56 +0800
Subject: [PATCH] =?UTF-8?q?18.1=20=E7=90=86=E8=A7=A3=E7=BA=BF=E7=A8=8B?=
 =?UTF-8?q?=E6=A6=82=E5=BF=B5?=
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---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index fa5d800..86cdd72 100644
--- a/README.md
+++ b/README.md
@@ -4615,6 +4615,8 @@ gcc echo_EPETserv.c -o serv
 
 ### 18.1 理解线程的概念
 
+#### 18.1.1 引入线程背景
+