diff --git a/docs/function_zh-CN.md b/docs/function_zh-CN.md
index ca6a4af..ca1c953 100644
--- a/docs/function_zh-CN.md
+++ b/docs/function_zh-CN.md
@@ -207,7 +207,7 @@ import (
 
 func main() {
     count := 0
-    
+
     add := func() {
         count++
     }