Update collections/collections.md

oucb · Feb 24, 2016 · 028d154 · 028d154
1 parent 360de10
commit 028d154
Showing 1 changed file with 0 additions and 2 deletions.
diff --git a/collections/collections.md b/collections/collections.md
@@ -317,6 +317,4 @@ Species['cat']
 Species.cat
 ```
 
-
-
 这只是一个快速浏览```collections```模块的介绍，建议你阅读本文最后的官方文档。