diff --git a/script/demo10_animation/tween_animation.gd b/script/demo10_animation/tween_animation.gd
index 3da2f34..c9144ca 100644
--- a/script/demo10_animation/tween_animation.gd
+++ b/script/demo10_animation/tween_animation.gd
@@ -6,6 +6,7 @@ onready var targetPosition = get_node("/root/Node2D/TargetPosition")
 
 # Called when the node enters the scene tree for the first time.
 func _ready():
+	# 会在起始点和终点不断的插值计算
 	tween.follow_property(self, "position", get_position(), targetPosition, "position", 2.0, Tween.TRANS_LINEAR, Tween.EASE_IN_OUT)
 	tween.start()