From 24d46f6992cb31c17b810cf7b06d367f3a954afb Mon Sep 17 00:00:00 2001
From: Suika <Ibuki-Suika@users.noreply.github.com>
Date: Mon, 18 Jun 2018 18:19:43 +0800
Subject: [PATCH] Fix code highlight (#514)

Fix code highlight
---
 eBook/04.7.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/eBook/04.7.md b/eBook/04.7.md
index 253c999..c8ed5db 100644
--- a/eBook/04.7.md
+++ b/eBook/04.7.md
@@ -43,7 +43,9 @@ func main() {
 
 `Contains` 判断字符串 `s` 是否包含 `substr`：
 
-	strings.Contains(s, substr string) bool
+```go
+strings.Contains(s, substr string) bool
+```
 
 ## 4.7.3 判断子字符串或字符在父字符串中出现的位置（索引）