diff --git a/Zframework/light/init.lua b/Zframework/light/init.lua
index 624d06b7..3fd05ed1 100644
--- a/Zframework/light/init.lua
+++ b/Zframework/light/init.lua
@@ -62,7 +62,7 @@ function LIGHT.draw()
 	end
 end
 function LIGHT.clear()
-	for i=#Lights,1,-1 do
+	for i=1,#Lights do
 		Lights[i].blackCanvas:release()
 		Lights[i].shadowCanvas:release()
 		Lights[i].renderCanvas:release()
diff --git a/Zframework/tableExtend.lua b/Zframework/tableExtend.lua
index 4e8d5cab..ace23560 100644
--- a/Zframework/tableExtend.lua
+++ b/Zframework/tableExtend.lua
@@ -73,7 +73,7 @@ end
 
 --Remove positive integer index of table
 function TABLE.cut(G)
-	for i=#G,1,-1 do
+	for i=1,#G do
 		G[i]=nil
 	end
 end