update imagezindex

HiTeachCC/ClientApp/src/plugin/PublicRenderer.js

@@ -315,7 +315,7 @@ function drawImage(stage, layer, item, tr, imgUrl) {
             });
             group.add(darthNode)
             layer.add(group);
-            group.zIndex(item.index)
+            group.zIndex(item.index+1)
             layer.draw();
         });
         r(200)