diff --git a/Difficult_Rocket/command/tree.py b/Difficult_Rocket/command/tree.py
index 0b83af6..e745f2d 100644
--- a/Difficult_Rocket/command/tree.py
+++ b/Difficult_Rocket/command/tree.py
@@ -57,6 +57,14 @@ DR_command = {
 }
 
 
+"""
+abc <a> abc -> abc()
+abc a abc -> bbb()
+abc -> help('abc')
+"""
+
+
+
 # TODO 给爷做了他