diff --git a/diagramCavas/source/diagramEditor/editorDiagramLayoutEngine.cpp b/diagramCavas/source/diagramEditor/editorDiagramLayoutEngine.cpp
index 2c0bbb5..c975a56 100644
--- a/diagramCavas/source/diagramEditor/editorDiagramLayoutEngine.cpp
+++ b/diagramCavas/source/diagramEditor/editorDiagramLayoutEngine.cpp
@@ -187,6 +187,8 @@ void DiagramLayoutEngine::layoutMainRouteInternal(
     int oppositeFlag = static_cast<int>(DirectionManager::getOpposite(mainDir));
     bool isHorizontal = DirectionManager::isHorizontal(mainDir);
     int spacing = isHorizontal ? config.horizontalSpacing() : config.verticalSpacing();
+    if(components.size() == 2)      //两个元件的主线拉长(特殊处理)
+        spacing *= 2;
 
     // 计算分段索引
     int nSeg = components.size() - 1;  // 实际段数
@@ -215,7 +217,11 @@ void DiagramLayoutEngine::layoutMainRouteInternal(
             delta.setY(nSegIndex * spacing);
         }
 
-        int rotate = DirectionManager::getRotationAngle(mainDir);
+        int rotate = 0;
+        if(i == 0 && (compo.nType == 6))      //单port元件队首反向
+            rotate = DirectionManager::getRotationAngle(DirectionManager::getOpposite(mainDir));
+        else
+            DirectionManager::getOpposite(mainDir);
 
         // 更新组件
         updateComponent(compo, dirMask, delta, rotate, context);
diff --git a/diagramCavas/source/diagramEditor/layoutCalculator.cpp b/diagramCavas/source/diagramEditor/layoutCalculator.cpp
index 5b1c5cb..80054dd 100644
--- a/diagramCavas/source/diagramEditor/layoutCalculator.cpp
+++ b/diagramCavas/source/diagramEditor/layoutCalculator.cpp
@@ -198,13 +198,13 @@ void FixedLayoutCalculator::calculateBlockPositionsInContainer(DiagramEditorStru
                 }*/
 
                 if (layer == 0) {  // 上间隔
-                    center = QPointF(currentX + rec.width() * 0.5,
+                    center = QPointF(currentX + rec.width() * 0.5 + centerOffset.x(),
                                      midUpY - rec.height() * 0.5 + centerOffset.y() - Constants::EDITOR_ITEM_HEIGHT * 0.5);
                 } else if (layer == 3) {  // 下间隔
-                    center = QPointF(currentX + rec.width() * 0.5,
+                    center = QPointF(currentX + rec.width() * 0.5 + centerOffset.x(),
                                      midDownY + rec.height() * 0.5 + centerOffset.y() + Constants::EDITOR_ITEM_HEIGHT * 0.5);
                 }
-                currentX += rec.width();
+                currentX += rec.width() + CONTAINER_H_SPACING*0.5;
             }
             // 变压器不在这里处理
 
diff --git a/diagramCavas/source/graphicsDataModel/baseModel.cpp b/diagramCavas/source/graphicsDataModel/baseModel.cpp
index 1a7e993..6c151d9 100644
--- a/diagramCavas/source/graphicsDataModel/baseModel.cpp
+++ b/diagramCavas/source/graphicsDataModel/baseModel.cpp
@@ -201,11 +201,11 @@ void BaseModel::selectNormalDevicePort(
         QMap<QString, ItemPort*> mapDest = pDest->getPorts();
 
         for (auto& port : mapSrc)
-            if (port->getType() == T_lineOut)
+            if (port->getType() == T_lineOut || port->getType() == T_lineInOut)
                 pSrcPort = port;
 
         for (auto& port : mapDest)
-            if (port->getType() == T_lineIn)
+            if (port->getType() == T_lineIn || port->getType() == T_lineInOut)
                 pDestPort = port;
     }
 }