diff --git a/examples/startDome.php b/examples/startDome.php
index bd9de97..3889529 100644
--- a/examples/startDome.php
+++ b/examples/startDome.php
@@ -528,8 +528,10 @@ $handle = fopen( "/home/yuanjiajia/Desktop/blender/blender_test/scene/render.cfg
 fwrite($handle,$render);
 fclose($handle);
 
-$result = null;
-$var = null;
+
+
+
+// 六、启动渲染器
 $cmd = "gnome-terminal -t \"LuxCoreRender\" -e \"luxcoreconsole -o /home/yuanjiajia/Desktop/blender/blender_test/scene/render.cfg -f /home/yuanjiajia/Desktop/blender/blender_test/scene/scene.scn\"";
 shell_exec($cmd);