diff --git a/ArchitectureColoredPainting/src/Editor/RightBar/InfoDisplayWidget.cpp b/ArchitectureColoredPainting/src/Editor/RightBar/InfoDisplayWidget.cpp
index d41d374..aeaa652 100644
--- a/ArchitectureColoredPainting/src/Editor/RightBar/InfoDisplayWidget.cpp
+++ b/ArchitectureColoredPainting/src/Editor/RightBar/InfoDisplayWidget.cpp
@@ -61,13 +61,13 @@ void InfoDisplayWidget::generateLayerForm()
             emit requireRefreshElementWidget();
             emit requireRefreshPreview();
         });
-        scaleX->setValidator(new QDoubleValidator(0.001, 1000, 4, this));
+        scaleX->setValidator(new QDoubleValidator(-1000, 1000, 4, this));
         connect(scaleX, &QLineEdit::textChanged, [=](QString content) {
             this->displayLayer->property.scale = {content.toDouble(), this->displayLayer->property.scale.y()};
             emit requireRefreshElementWidget();
             emit requireRefreshPreview();
         });
-        scaleY->setValidator(new QDoubleValidator(0.001, 1000, 4, this));
+        scaleY->setValidator(new QDoubleValidator(-1000, 1000, 4, this));
         connect(scaleY, &QLineEdit::textChanged, [=](QString content) {
             this->displayLayer->property.scale = {this->displayLayer->property.scale.x(), content.toDouble()};
             emit requireRefreshElementWidget();
diff --git a/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.cpp b/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.cpp
index a27da25..13f8e4e 100644
--- a/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.cpp
+++ b/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.cpp
@@ -78,13 +78,14 @@ void LayerTreeWidget::popMenu(const QPoint &pos)
                     emit requireRefreshPreview();
                     });
                 menu.addAction(QString::fromLocal8Bit("重命名"), this, &LayerTreeWidget::onRenameEvent);
-                menu.addAction(QString::fromLocal8Bit("删除（保留子节点）"), this, [this]() {
-                    auto layer = this->selectedItem->data(0, Qt::UserRole).value<LayerWrapper*>();
-                    layer->delSelf();
-                    layer->getParent()->removeChild(layer);
-                    this->refresh();
-                    emit requireRefreshPreview();
-                    });
+                if(typeid(*layer) == typeid(FolderLayerWrapper))
+                    menu.addAction(QString::fromLocal8Bit("删除（保留子节点）"), this, [this]() {
+                        auto layer = this->selectedItem->data(0, Qt::UserRole).value<LayerWrapper*>();
+                        layer->delSelf();
+                        layer->getParent()->removeChild(layer);
+                        this->refresh();               
+                        emit requireRefreshPreview();
+                        });
             }
             if (typeid(*layer) == typeid(FolderLayerWrapper) && ((FolderLayerWrapper*)layer)->getReferencedBy() == -1) {
                 menu.addAction(QString::fromLocal8Bit("创建组合元素"), this, [this]() {