diff --git a/PLAN.md b/PLAN.md
index 52bdb0c..77236c3 100644
--- a/PLAN.md
+++ b/PLAN.md
@@ -73,6 +73,7 @@
         public:
         	// 从FieldArray构建Fields
         	Fields(FieldArray field_array);
+        
         	// 从LevelDB存储的Value中解码出Fields
         	Fields(std::string fields_str);
         	~Fields();