diff --git a/doc/demo01_hello/3.node.md b/doc/demo01_hello/3.node.md
index 73af826..ffb3738 100644
--- a/doc/demo01_hello/3.node.md
+++ b/doc/demo01_hello/3.node.md
@@ -1,4 +1,4 @@
-# 1. 游戏节点
+# 1. 节点的显示和隐藏
 
 - 删除游戏对象