diff --git a/untitled/mainwindow.cpp b/untitled/mainwindow.cpp
index 87274b3..48c40d9 100644
--- a/untitled/mainwindow.cpp
+++ b/untitled/mainwindow.cpp
@@ -17,15 +17,15 @@
 #include <QFileDialog>
 #include <QMessageBox>
 #include <QTextEdit>
-#include<QDockWidget>
+#include <QDockWidget>
+#include <QStatusBar>
+
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent)
 {
     setWindowTitle("综合平台编程器");
     setGeometry(500, 200, 1000, 700);
-
-    // 初始化标签页
-    m_tabWidget = new QTabWidget(this);
+    m_tabWidget = new QTabWidget(this);// 初始化标签页
     m_tabWidget->setTabsClosable(true);
     setCentralWidget(m_tabWidget);
     connect(m_tabWidget, &QTabWidget::currentChanged, this, &MainWindow::onTabChanged);
@@ -38,33 +38,31 @@ MainWindow::MainWindow(QWidget *parent)
 MainWindow::~MainWindow()
 {
 }
+
 void MainWindow::createLogPanel()
 {
     // 创建可停靠窗口
     m_logDock = new QDockWidget("消息输出", this);
+    // 设置为只能在底部停靠
     m_logDock->setAllowedAreas(Qt::BottomDockWidgetArea);
     m_logDock->setFeatures(QDockWidget::DockWidgetClosable |
                           QDockWidget::DockWidgetMovable |
-                          QDockWidget::DockWidgetFloatable); // 添加垂直标题栏
+                          QDockWidget::DockWidgetFloatable);
 
-    // 设置高度范围而非固定高度
-    m_logDock->setMinimumHeight(150);
+    m_logDock->setMinimumHeight(150);//设置高度范围
     m_logDock->setMaximumHeight(400);
 
-    // 创建主内容部件
-    QWidget* logWidget = new QWidget;
+    QWidget* logWidget = new QWidget;// 创建主内容部件
     QVBoxLayout* logLayout = new QVBoxLayout;
     logLayout->setContentsMargins(2, 2, 2, 2);
 
-    // 创建文本编辑框用于显示日志
-    m_logEdit = new QTextEdit;
+    m_logEdit = new QTextEdit;// 创建文本编辑框用于显示日志
     m_logEdit->setReadOnly(true);
     m_logEdit->setFont(QFont("Consolas", 10));
     m_logEdit->setStyleSheet("background-color: #f8f8f8; border: 1px solid #d9d9d9;");
     m_logEdit->setMinimumHeight(100);
 
-    // 创建控制按钮
-    QHBoxLayout* btnLayout = new QHBoxLayout;
+    QHBoxLayout* btnLayout = new QHBoxLayout;// 创建控制按钮
     m_clearLogBtn = new QPushButton("清空日志");
 
     btnLayout->addWidget(m_clearLogBtn);
@@ -76,6 +74,7 @@ void MainWindow::createLogPanel()
     logWidget->setLayout(logLayout);
 
     m_logDock->setWidget(logWidget);
+    // 添加到底部dock区域，这会使它横跨整个窗口宽度
     addDockWidget(Qt::BottomDockWidgetArea, m_logDock);
 
     // 初始显示状态
@@ -84,6 +83,7 @@ void MainWindow::createLogPanel()
     // 连接信号
     connect(m_clearLogBtn, &QPushButton::clicked, this, &MainWindow::onClearLogButtonClicked);
 }
+
 // 槽函数实现
 void MainWindow::onClearLogButtonClicked()
 {
@@ -103,7 +103,7 @@ void MainWindow::createMenus()
     QMenu *fileMenu = menuBar()->addMenu("文件");
     QMenu *editMenu = menuBar()->addMenu("操作");
 
-    // 设置菜单项字体大小（适用于所有子菜单）
+    // 设置菜单项字体大小
     QFont itemFont = fileMenu->font();
     itemFont.setPointSize(12); // 菜单项文字大小
     fileMenu->setFont(itemFont);
@@ -146,6 +146,7 @@ void MainWindow::createMenus()
     m_saveAsAction->setFont(itemFont);
     connect(m_saveAsAction, &QAction::triggered, this, &MainWindow::onSaveAs);
     fileMenu->addAction(m_saveAsAction);
+
     // 操作菜单 - 添加复制、粘贴、删除功能
     QAction *copyAction = new QAction("复制(&C)", this);
     copyAction->setShortcut(QKeySequence::Copy);
@@ -453,13 +454,13 @@ void MainWindow::updateToolBar(BaseDocument *doc)
         )");
 
         normallyOpenBtn->installEventFilter(this);
-            normallyClosedBtn->installEventFilter(this);
-            greaterThanBtn->installEventFilter(this);
-            greaterThanEqualBtn->installEventFilter(this);
-            lessThanBtn->installEventFilter(this);
-            lessThanEqualBtn->installEventFilter(this);
-            equalBtn->installEventFilter(this);
-            coilBtn->installEventFilter(this);
+        normallyClosedBtn->installEventFilter(this);
+        greaterThanBtn->installEventFilter(this);
+        greaterThanEqualBtn->installEventFilter(this);
+        lessThanBtn->installEventFilter(this);
+        lessThanEqualBtn->installEventFilter(this);
+        equalBtn->installEventFilter(this);
+        coilBtn->installEventFilter(this);
     }
 }
 
@@ -489,7 +490,7 @@ bool MainWindow::eventFilter(QObject *obj, QEvent *event)
                     drag->exec(Qt::CopyAction);
                     return true;
                 }
-                // HMI文档处理（原有代码）
+                // HMI文档处理
                 if (currentDoc && currentDoc->type() == BaseDocument::HMI)
                 {
                     HMIDocument* hmiDoc = static_cast<HMIDocument*>(currentDoc);
@@ -501,7 +502,7 @@ bool MainWindow::eventFilter(QObject *obj, QEvent *event)
                     {
                         hmiDoc->startDrawingRectangle();//点击生成标志
                     }
-                    // 新增拖拽逻辑（与PLC一致）
+                    // 新增拖拽逻辑
                     QMimeData *mime = new QMimeData;
                     mime->setText(toolType);//传递工具类型（"指示灯"或"按钮"）
                     QDrag *drag = new QDrag(toolBtn);
@@ -535,6 +536,7 @@ void MainWindow::onNewPLC()
     m_tabWidget->setCurrentWidget(doc);
     updateToolBar(doc); // 更新工具栏为PLC工具
 }
+
 // 标签页切换时更新工具栏
 void MainWindow::onTabChanged(int idx)
 {
@@ -546,6 +548,7 @@ void MainWindow::onTabChanged(int idx)
     BaseDocument *doc = dynamic_cast<BaseDocument*>(m_tabWidget->widget(idx));
     updateToolBar(doc);
 }
+
 // 保存文档
 void MainWindow::onSave()
 {
@@ -558,6 +561,7 @@ void MainWindow::onSave()
         saveDocument(doc);
     }
 }
+
 // 另存为文档
 void MainWindow::onSaveAs()
 {
@@ -566,6 +570,7 @@ void MainWindow::onSaveAs()
         saveDocumentAs(doc);
     }
 }
+
 // 打开文档
 void MainWindow::onOpen()
 {
@@ -599,6 +604,7 @@ void MainWindow::onOpen()
         delete doc;
     }
 }
+
 // 关闭标签页
 void MainWindow::onCloseTab(int index)
 {
@@ -624,6 +630,7 @@ void MainWindow::onCloseTab(int index)
     m_tabWidget->removeTab(index);
     delete doc;
 }
+
 // 保存文档
 void MainWindow::saveDocument(BaseDocument *doc)
 {
@@ -647,6 +654,7 @@ void MainWindow::saveDocument(BaseDocument *doc)
         }
     }
 }
+
 // 另存为文档
 void MainWindow::saveDocumentAs(BaseDocument *doc)
 {
diff --git a/untitled/plcdocument.cpp b/untitled/plcdocument.cpp
index 27fb5f8..0608d12 100644
--- a/untitled/plcdocument.cpp
+++ b/untitled/plcdocument.cpp
@@ -54,7 +54,6 @@ PLCDocument::PLCDocument(QWidget *parent)
     layout->addWidget(scrollArea);
     setLayout(layout);
     m_view->setAcceptDrops(true);
-
     createRealTable();
 
     connect(m_scene, &QGraphicsScene::selectionChanged, this, [this]()
@@ -84,7 +83,7 @@ void PLCDocument::createRealTable()
     QRectF tableRect(0, 0, m_columns * m_cellSize, m_rows * m_cellSize);
     m_tableFrame = new QGraphicsRectItem(tableRect);
     m_tableFrame->setPen(QPen(Qt::black, 2));
-    m_tableFrame->setBrush(QBrush(QColor(245, 245, 245)));
+    m_tableFrame->setBrush(QBrush(QColor(228, 255, 202)));
     m_tableFrame->setZValue(-10);
     m_scene->addItem(m_tableFrame);
 
@@ -491,18 +490,22 @@ bool PLCDocument::tryEndConnection(PLCItem *endItem, TerminalType endTerminal)
         int startCol = static_cast<int>(m_connectionStartItem->pos().x() / m_cellSize);
         int endCol = static_cast<int>(endItem->pos().x() / m_cellSize);
 
-        if (m_startTerminal == LeftTerminal) {
-            if (endTerminal != RightTerminal) {
+        if (m_startTerminal == LeftTerminal)
+        {
+            if (endTerminal != RightTerminal)
+            {
                 QMessageBox::warning(this, "连线错误", "左端子只能连接到其他元件的右端子");
                 clearCurrentConnection();
                 return false;
             }
-            if (startCol <= endCol) {
+            if (startCol <= endCol)
+            {
                 QMessageBox::warning(this, "连线错误", "左端子只能连接到左边元件的右端子");
                 clearCurrentConnection();
                 return false;
             }
-        } else if (m_startTerminal == RightTerminal) {
+        } else if (m_startTerminal == RightTerminal)
+        {
             if (endTerminal != LeftTerminal) {
                 QMessageBox::warning(this, "连线错误", "右端子只能连接到其他元件的左端子");
                 clearCurrentConnection();