diff --git a/教学/node_2d.gd b/教学/node_2d.gd
new file mode 100644
index 0000000..2cecd9c
--- /dev/null
+++ b/教学/node_2d.gd
@@ -0,0 +1,11 @@
+extends Node2D
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	pass
diff --git a/教学/node_2d.tscn b/教学/node_2d.tscn
index e506d57..b8c647f 100644
--- a/教学/node_2d.tscn
+++ b/教学/node_2d.tscn
@@ -1,8 +1,10 @@
-[gd_scene load_steps=2 format=3 uid="uid://dwpbn3x8kh3qm"]
+[gd_scene load_steps=3 format=3 uid="uid://dwpbn3x8kh3qm"]
 
+[ext_resource type="Script" path="res://node_2d.gd" id="1_7g16r"]
 [ext_resource type="AudioStream" uid="uid://6gqhxvgw5y3y" path="res://摇啊摇诡异pipa.wav" id="1_jxs8q"]
 
 [node name="Node2D" type="Node2D"]
+script = ExtResource("1_7g16r")
 
 [node name="AudioStreamPlayer" type="AudioStreamPlayer" parent="."]