From cfda52200adfbf8de1e867b520b2fee009392a96 Mon Sep 17 00:00:00 2001
From: Augus <34206897+DrAugus@users.noreply.github.com>
Date: Fri, 6 May 2022 22:16:04 +0800
Subject: [PATCH] book: fix indent (#236)

---
 book/zh-cn/03-runtime.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/book/zh-cn/03-runtime.md b/book/zh-cn/03-runtime.md
index 857d8ad..c43ab0f 100644
--- a/book/zh-cn/03-runtime.md
+++ b/book/zh-cn/03-runtime.md
@@ -397,8 +397,8 @@ int main() {
 
 int main() {
 
-std::string str = "Hello world.";
-std::vector<std::string> v;
+    std::string str = "Hello world.";
+    std::vector<std::string> v;
 
     // 将使用 push_back(const T&), 即产生拷贝行为
     v.push_back(str);