diff --git a/src/src/QDicomViewer.cpp b/src/src/QDicomViewer.cpp
index 2dea5cd..f1baa77 100644
--- a/src/src/QDicomViewer.cpp
+++ b/src/src/QDicomViewer.cpp
@@ -955,31 +955,16 @@ void QDicomViewer::SetupGridTool(QToolButton* gridBtn) {
 
 void QDicomViewer::SetupConnections()
 {
-	//connect(ui->action_OpenDicomFile, SIGNAL(triggered()), this, SLOT(OnOpenDicomFile()));
-	//connect(ui->action_OpenDicomFolder, SIGNAL(triggered()), this, SLOT(OnOpenSeriesFolder()));
-	//connect(ui->action_ShowMetaData, SIGNAL(triggered()), this, SLOT(OnShowMetaData()));
-	//connect(ui->action_ExportImage, SIGNAL(triggered()), this, SLOT(OnExportImage()));
-	//connect(ui->action_ImportImage, SIGNAL(triggered()), this, SLOT(OnImportImage()));
-	//connect(ui->action_Fusion, SIGNAL(triggered()), this, SLOT(OnFusion()));
-
 	//通知左侧的缩略图bar ，当前选中series的变换
-	connect(ui->viewContainer, SIGNAL(Signal_NotifyThumbnail(DicomImageView*)),
-		ui->thumbnailBar, SLOT(Slot_setCurrentThumbnail(DicomImageView*)));
+	connect(ui->viewContainer,&ViewContainerWidget::Signal_NotifyThumbnail,
+		ui->thumbnailBar, &ThumbnailBarWidget::Slot_setCurrentThumbnail);
 
 	//通知右侧显示区域，当前有series被点击
-	connect(ui->thumbnailBar, SIGNAL(Signal_ThumbClicked(thumbnailImage*)),
-		ui->viewContainer, SLOT(Slot_ThumbnailClickEvent(thumbnailImage*)));
+	connect(ui->thumbnailBar, &ThumbnailBarWidget::Signal_ThumbClicked,
+		ui->viewContainer, &ViewContainerWidget::Slot_ThumbnailClickEvent);
 
-	connect(ui->toolBar, SIGNAL(visibilityChanged(bool)),
-		this, SLOT(Slot_ToolbarVisibilityChanged(bool)));
-
-
-
-	//connect(ui->viewContainer, SIGNAL(Signal_NotifyThumbnail(DicomImageView*)),
-	//	ui->vcr_toolbar, SLOT(setImageView(DicomImageView*)));
-
-	//connect(ui->thumbnailBar, SIGNAL(Signal_CopyDicomView(SeriesInfo_t*)),
-	//	this, SLOT(Slot_CopyDicomView(SeriesInfo_t*)));
+	connect(ui->toolBar, &QToolBar::visibilityChanged,
+		this, &QDicomViewer::Slot_ToolbarVisibilityChanged);
 }
 
 
diff --git a/src/src/view/dicomimageview.cpp b/src/src/view/dicomimageview.cpp
index a2b0868..fac0b21 100644
--- a/src/src/view/dicomimageview.cpp
+++ b/src/src/view/dicomimageview.cpp
@@ -664,8 +664,8 @@ void DicomImageView::setDicomImageView(SeriesImageSet *series)
 	//whenver change instance,set scroll value to zero
 	initScrollbar();
 
-	connect(_scrollBar, SIGNAL(valueChanged(int)), this, SLOT(Slot_scrollValueChanged(int)));
-	connect(this, SIGNAL(Signal_Transformation(TransFormType)), this, SLOT(Slot_UpdateOrienInfo(TransFormType)));
+	connect(_scrollBar, &QScrollBar::valueChanged, this, &DicomImageView::Slot_scrollValueChanged);
+	connect(this, &DicomImageView::Signal_Transformation, this, &DicomImageView::Slot_UpdateOrienInfo);
 }
 
 bool DicomImageView::HasSeries()
diff --git a/src/src/view/thumbnailbarwidget.cpp b/src/src/view/thumbnailbarwidget.cpp
index 346c660..e0092ab 100644
--- a/src/src/view/thumbnailbarwidget.cpp
+++ b/src/src/view/thumbnailbarwidget.cpp
@@ -157,13 +157,13 @@ thumbnailImage* ThumbnailBarWidget::createThumbnailImage(QWidget *parent, Extend
 
 	thumbnailImage* t = new thumbnailImage(parent, series_info);
 	//connect(t, &thumbnailImage::Signal_ThumbClicked,this, &ThumbnailBarWidget::SLot_ThumbClicked);
-	connect(t, SIGNAL(Signal_ThumbClicked(thumbnailImage*)), this, SLOT(SLot_ThumbClicked(thumbnailImage*)));
+	connect(t, &thumbnailImage::Signal_ThumbClicked, this, &ThumbnailBarWidget::SLot_ThumbClicked);
 	return t;
 
 }
 
 
-//该槽函数未使用
+
 void ThumbnailBarWidget::Slot_setCurrentThumbnail(DicomImageView *view)
 {
 	if (view != nullptr)