diff --git a/experiment_data/analysis_state/~$标样.xlsx b/experiment_data/analysis_state/~$标样.xlsx
deleted file mode 100644
index d4a5841..0000000
Binary files a/experiment_data/analysis_state/~$标样.xlsx and /dev/null differ
diff --git a/experiment_data/sample_data/1111new.xlsx b/experiment_data/sample_data/1111new.xlsx
new file mode 100644
index 0000000..2bc3252
Binary files /dev/null and b/experiment_data/sample_data/1111new.xlsx differ
diff --git a/experiment_data/sample_data/22new.xlsx b/experiment_data/sample_data/22new.xlsx
new file mode 100644
index 0000000..3adfa80
Binary files /dev/null and b/experiment_data/sample_data/22new.xlsx differ
diff --git a/experiment_data/sample_data/333new.xlsx b/experiment_data/sample_data/333new.xlsx
new file mode 100644
index 0000000..c7d8710
Binary files /dev/null and b/experiment_data/sample_data/333new.xlsx differ
diff --git a/experiment_data/sample_data/new.xlsx b/experiment_data/sample_data/new.xlsx
new file mode 100644
index 0000000..3660b25
Binary files /dev/null and b/experiment_data/sample_data/new.xlsx differ
diff --git a/src/AnalysTool.pro b/src/AnalysTool.pro
index a625e63..152eaf5 100644
--- a/src/AnalysTool.pro
+++ b/src/AnalysTool.pro
@@ -4,6 +4,9 @@ greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 
 CONFIG += c++11
 
+CONFIG+=precompile_header
+PRECOMPILED_HEADER=stable.h
+
 # The following define makes your compiler emit warnings if you use
 # any Qt feature that has been marked deprecated (the exact warnings
 # depend on your compiler). Please consult the documentation of the
diff --git a/src/data/pointcalculate.cpp b/src/data/pointcalculate.cpp
index 6d3aa73..f9e06ab 100644
--- a/src/data/pointcalculate.cpp
+++ b/src/data/pointcalculate.cpp
@@ -476,7 +476,6 @@ QString PointCalculate::textFormatEndPoint(const QPointF point)
                    ).arg(QString::number(point.x(), 'f', 3));
 }
 
-
 QPointF PointCalculate::getClosestPointByY(const double left,const double right,const double valueY)
 {
     double minValue = std::numeric_limits<double>::infinity(); // 初始化为正无穷
@@ -484,7 +483,7 @@ QPointF PointCalculate::getClosestPointByY(const double left,const double right,
 
     for (const Global::ExperimentData& ed : _dataVtr) {
         if (left < ed.sampleTemp && ed.sampleTemp < right) {
-            float diff = std::abs(ed.dsc - valueY);
+            double diff = std::abs(ed.dsc - valueY);
             if (diff < minValue) {
                 minValue = diff;
                 closestPoint = QPointF(ed.sampleTemp, ed.dsc);
diff --git a/src/global.h b/src/global.h
index 44d3793..0536e2c 100644
--- a/src/global.h
+++ b/src/global.h
@@ -19,7 +19,7 @@ enum Mode{
     Analysis,
     ConnectedToDev,
     DeliveredData,
-    ExperimentStart
+    Experiment
 };
 
 enum DeviceConnectionStatus{
@@ -79,9 +79,9 @@ extern QVector<CurveFileData> _curveFileDataVtr;
 extern ExperimentInfo _experimentInfo;
 extern QVector<CurveExperimentData> _curveExperimentDataVtr;
 
-//
+// Instrument coefficient.
 extern bool _enthalpyCoefficientEnableFlag;
-//abc
+///abc
 extern QVector<double> _enthalpyCoefficientVtr;
 
 }
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 0dd88f5..33029c5 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -6,6 +6,8 @@
 #include "serialport.h"
 #include "dataparser.h"
 #include "filemanager.h"
+#include "logger.h"
+#include "xlsxhandler.h"
 
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent),
@@ -82,6 +84,8 @@ MainWindow::MainWindow(QWidget *parent)
     _eventHandler = _centralWidget->getEvnetHandler();
     //
     connections();
+    //
+    //    ui->actionStop->setEnabled(false);
 
 }
 
@@ -90,7 +94,6 @@ MainWindow::~MainWindow()
     // 删除非QObject派生类的对象
     // 假设 Ui::MainWindow 不是 QObject 派生类
     delete ui;
-
 }
 
 void MainWindow::slotContextMenuShow(const QPoint point)
@@ -156,6 +159,7 @@ void MainWindow::connections()
     connect(_eventHandler,&EventHandler::sigSetCurve,
             _specificHeatComparisonMethodForm,
             &SpecificHeatComparisonMethodForm::slotSetCurve);
+
 }
 
 void MainWindow::setActionEnable(const bool flag)
@@ -184,16 +188,44 @@ void MainWindow::setSubWidgetAttribute(QWidget *widget)
     widget->setFixedSize(widget->geometry().width(),widget->geometry().height());
 }
 
+bool MainWindow::saveExperimentFile(const QString fileName)
+{
+    QString localFileName = fileName;
+    if(fileName.isEmpty()){
+            localFileName = "new";
+    }
+    QString xlsxfilePath = Global::SampleDataFloder + "/" + localFileName + ".xlsx";
+    QString filePath = QFileDialog::getSaveFileName(nullptr, "Save experiment file",
+                                                    xlsxfilePath, "Excel Files (*.xlsx)");
+    logde<<"filePath:"<<filePath.toStdString();
+
+    if (filePath.isEmpty()) {
+        qDebug() << "User cancel the operation.";
+        return false;
+    }
+
+    XlsxHandler::writeFile(filePath);
+
+    return true;
+}
+
 void MainWindow::on_actionStop_triggered()
 {
-    QByteArray ba = DataParser::setDeviceStartStop(DeviceStartMode::Stop);
-    SerialPort::instance()->slotSendData(ba);
+    if(Global::_mode == Global::Mode::Experiment)
+    {
+        QByteArray ba = DataParser::setDeviceStartStop(DeviceStartMode::Stop);
+        SerialPort::instance()->slotSendData(ba);
 
-    // Save data.
+#if 0
+        // Save data.
+        if(saveExperimentFile(Global::_experimentInfo.sampleName)){
+            _leftWidget->reloadFileName();
+        }
+#endif
 
-
-    //    Global::instance()->setMode(Global::Mode::Analysis);
-    Global::_mode = Global::Mode::Analysis;
+        // Set software mode to analysis.
+        Global::_mode = Global::Mode::Analysis;
+    }
 }
 
 void MainWindow::on_actionNew_triggered()
@@ -210,14 +242,14 @@ void MainWindow::on_actionStart_triggered()
 
     SerialPort::instance()->slotSendData(ba);
 
-    //    Global::instance()->setMode(Global::Mode::ExperimentStart);
-    Global::_mode = Global::Mode::ExperimentStart;
+    Global::_mode = Global::Mode::Experiment;
+
+    logde<<"start experiment,set soft into experiment mode.";
 }
 
 void MainWindow::on_actionReadOnly_triggered()
 {
-    //    Global::instance()->setMode(Global::Mode::ExperimentStart);
-    Global::_mode = Global::Mode::ExperimentStart;
+    Global::_mode = Global::Mode::Experiment;
     SerialPort::instance()->openSp();
 }
 
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 8396c05..631d9e2 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -45,6 +45,7 @@ private slots:
     void on_actionStop_triggered();
     void on_actionReadOnly_triggered();
     void on_actionRealTimeWidget_triggered();
+
     //analysis
     void on_actionNumericalLabel_triggered();
     void on_actionStartPoint_triggered();
@@ -84,6 +85,7 @@ private:
     void connections();
     void setActionEnable(const bool);
     void setSubWidgetAttribute(QWidget *);
+    bool saveExperimentFile(const QString fileName);
 private:
     Ui::MainWindow *ui;
     CentralWidget *_centralWidget;
diff --git a/src/serialport/dataparser.cpp b/src/serialport/dataparser.cpp
index 7e91f32..d24328d 100644
--- a/src/serialport/dataparser.cpp
+++ b/src/serialport/dataparser.cpp
@@ -5,6 +5,7 @@
 #include "dataparser.h"
 #include "defines.h"
 #include "global.h"
+#include "logger.h"
 
 namespace DataParser
 {
@@ -183,7 +184,8 @@ namespace DataParser
         case DeviceRunStatus::Idle:
         case DeviceRunStatus::Cooling:
 //            Global::instance()->setMode(Global::Mode::Analysis);
-            Global::_mode = Global::Mode::Analysis;
+//            Global::_mode = Global::Mode::Analysis;
+//            logde<<"Device into cooling status,then set the software into annlysis mode.";
             return true;
             break;
         default:break;
diff --git a/src/serialport/serialport.cpp b/src/serialport/serialport.cpp
index 88a5fc1..d62ae49 100644
--- a/src/serialport/serialport.cpp
+++ b/src/serialport/serialport.cpp
@@ -10,6 +10,7 @@
 #include "defines.h"
 #include "dataparser.h"
 #include "global.h"
+#include "logger.h"
 
 using namespace std;
 
@@ -132,11 +133,11 @@ void SerialPort::slotReadData()
         // read data
         if (spp->addr == 0)
         {
-            if (Global::Mode::ExperimentStart == Global::_mode)
+            if (Global::Mode::Experiment == Global::_mode)
             {
                 emit sigSendCommonData(cd);
             }
-       //     emit sigSendCommonDataToRealDataForm(cd);
+            emit sigSendCommonDataToRealDataForm(cd);
         }
     }
 #endif
@@ -174,6 +175,7 @@ void SerialPort::commonDataParser(const int dataLength, const u16 addr,
             case DeviceRunStatus::Cooling:
 //                Global::instance()->setMode(Global::Mode::Analysis);
                 Global::_mode = Global::Mode::Analysis;
+                logde<<"set global mode analysis.common data parser.";
                 break;
             default:break;
             }
@@ -201,10 +203,11 @@ void SerialPort::commonDataParser(const int dataLength, const u16 addr,
             case DeviceStartMode::Stop:
 //                Global::instance()->setMode(Global::Mode::Analysis);
                 Global::_mode = Global::Mode::Analysis;
+                logde<<"set global mode analysis.";
                 break;
             case DeviceStartMode::Start:
 //                Global::instance()->setMode(Global::Mode::ExperimentStart);
-                Global::_mode = Global::Mode::ExperimentStart;
+                Global::_mode = Global::Mode::Experiment;
                 break;
             default:
                 break;
diff --git a/src/stable.h b/src/stable.h
new file mode 100644
index 0000000..1e10165
--- /dev/null
+++ b/src/stable.h
@@ -0,0 +1,46 @@
+// #ifndef STABLE_H //Qt官方例子没有定义这个条件编译
+// #define STABLE_H
+
+// Add C includes here
+#include <iostream>
+
+#if defined __cplusplus
+// Add C++ includes here
+#include <vector>
+
+// Qt includes
+#include <QApplication>
+// #include <QtCore> //请谨慎包含
+// #include <QtGui>  //请谨慎包含
+#include <QObject>
+#include <qglobal.h>
+#include <QDir>
+#include <QIntValidator>
+#include <QToolTip>
+#include <QDebug>
+#include <QMainWindow>
+#include <QDialog>
+#include <QFileDialog>
+#include <QPushButton>
+#include <QLabel>
+#include <QLineEdit>
+#include <QTimer>
+//#include <QtNetwork>
+#include <QTextCodec>
+#include <QThread>
+//#include <QtSql>
+#if (QT_VERSION > QT_VERSION_CHECK(5,0,0))
+#include <QtWidgets>
+#endif
+
+#include <QGraphicsScene>
+#include <QGraphicsItem>
+#include <QGraphicsPixmapItem>
+#include <QGraphicsSceneWheelEvent>
+
+// Other
+//#include "thirdparty/include/libmain.h"
+//#include "my_stable_class.h"
+
+#endif //__cplusplus
+// #endif // STABLE_H
diff --git a/src/ui/centralwidget.cpp b/src/ui/centralwidget.cpp
index eef72c9..fc4629a 100644
--- a/src/ui/centralwidget.cpp
+++ b/src/ui/centralwidget.cpp
@@ -74,6 +74,14 @@ CentralWidget::CentralWidget(QWidget *parent)
     _customPlot->replot();
 #endif
     //    startTimer(1000);
+
+
+    // 设置坐标轴标签
+    _customPlot->xAxis->setLabel("Temp/℃");
+    _customPlot->yAxis->setLabel("DSC/mW");
+    // 设置坐标轴范围，以便我们可以看到全部数据
+    _customPlot->xAxis->setRange(0, 400);
+    _customPlot->yAxis->setRange(-50, 50);
 }
 
 CentralWidget::~CentralWidget()
@@ -100,7 +108,7 @@ void CentralWidget::setAnalysisMode(const CentralWidget::AnalysisMode mode)
 
 void CentralWidget::slotModeModify(const Global::Mode mode)
 {
-    if (Global::Mode::ExperimentStart == mode)
+    if (Global::Mode::Experiment == mode)
     {
 #if 0
         if (_customPlot->graphCount() > 0 && _currentGraph)
@@ -130,11 +138,20 @@ void CentralWidget::slotRecvCommonData(const CommonData &cd)
 {
     qDebug() << "slotRevCommonData";
 
+    static double index = 0.0;
+
     if(!_currentCurve){
         _currentCurve = new QCPCurve(_customPlot->xAxis, _customPlot->yAxis);
     }
     // Update curve.
-    _currentCurve->addData(cd.sample_temp, cd.dsc);
+    //    _currentCurve->addData(cd.sample_temp, cd.dsc);
+        _currentCurve->addData(index++,cd.sample_temp, cd.dsc);
+    //     _currentCurve->data()->add(QCPCurveData(index++, cd.sample_temp, cd.dsc));
+
+
+    // 设置曲线数据
+//    _currentCurve->setData(data);
+
 
     _customPlot->rescaleAxes();
     _customPlot->replot();
diff --git a/src/ui/leftwidget.cpp b/src/ui/leftwidget.cpp
index dab0b69..3d9ce56 100644
--- a/src/ui/leftwidget.cpp
+++ b/src/ui/leftwidget.cpp
@@ -13,18 +13,18 @@ LeftWidget::LeftWidget(QWidget *parent ): QDockWidget(parent)
     _treeWidget = new QTreeWidget();
     _treeWidget->setHeaderHidden(true);
 
-    _analysisStateItem = new QTreeWidgetItem(_treeWidget);
-    _analysisStateItem->setText(0,"分析状态");
-    _baseLineItem = new QTreeWidgetItem(_treeWidget);
-    _baseLineItem->setText(0,"基线");
     _sampleDataItem = new QTreeWidgetItem(_treeWidget);
     _sampleDataItem->setText(0,"样品数据");
+    _baseLineItem = new QTreeWidgetItem(_treeWidget);
+    _baseLineItem->setText(0,"基线");
+    _analysisStateItem = new QTreeWidgetItem(_treeWidget);
+    _analysisStateItem->setText(0,"分析状态");
 
     _treeWidget->setSortingEnabled(false);
 
-    _treeWidget->addTopLevelItem(_sampleDataItem);
-    _treeWidget->addTopLevelItem(_baseLineItem);
-    _treeWidget->addTopLevelItem(_analysisStateItem);
+    _treeWidget->insertTopLevelItem(0, _sampleDataItem);
+    _treeWidget->insertTopLevelItem(1, _baseLineItem);
+    _treeWidget->insertTopLevelItem(2, _analysisStateItem);
 
     setWidget(_treeWidget);
 
@@ -42,9 +42,21 @@ LeftWidget::LeftWidget(QWidget *parent ): QDockWidget(parent)
             this,&LeftWidget::slotTreeWidgetItemClicked);
 }
 
+void LeftWidget::reloadFileName()
+{
+    clearAllChildItems(_sampleDataItem);
+    clearAllChildItems(_baseLineItem);
+    clearAllChildItems(_analysisStateItem);
+
+    initFileName(_sampleDataItem,Global::SampleDataFloder);
+    initFileName(_baseLineItem,Global::BaseLineFolder);
+    initFileName(_analysisStateItem,Global::AnalysisStateFolder);
+}
+
 void LeftWidget::initData()
 {
-    const QString folderPath = QDir::currentPath()+"/../experiment_data";
+    //    const QString folderPath = QDir::currentPath()+"/../experiment_data";
+    const QString folderPath = Global::SampleDataFloder;
 #if 1
     QDir dir(folderPath);
     if (!dir.exists()) {
@@ -111,16 +123,6 @@ void LeftWidget::initFileName(QTreeWidgetItem* parentItem,const QString &folderP
         //        _sampleDataItem->addChild(new QTreeWidgetItem(0,fileName));
         parentItem->addChild(subItem);
     }
-
-#if 0
-    // 获取文件夹中的所有文件名
-    QStringList files = dir.entryList(QDir::Files);  // 只列出文件
-    qDebug() << "Files in the current directory:";
-    foreach (const QString &fileName, files)
-    {
-        qDebug() << fileName;
-    }
-#endif
 }
 
 void LeftWidget::expandAll(QTreeWidgetItem* item) {
@@ -130,6 +132,15 @@ void LeftWidget::expandAll(QTreeWidgetItem* item) {
     }
 }
 
+void LeftWidget::clearAllChildItems(QTreeWidgetItem *parentItem)
+{
+    int childCount = parentItem->childCount();
+    for (int i = 0; i < childCount; ++i) {
+        QTreeWidgetItem* childItem = parentItem->takeChild(0);
+        delete childItem;
+    }
+}
+
 #if 0
 void LeftWidget::recursiveFolderOperation(const QString& folderPath) {
     QDir dir(folderPath);
diff --git a/src/ui/leftwidget.h b/src/ui/leftwidget.h
index e226628..7603e21 100644
--- a/src/ui/leftwidget.h
+++ b/src/ui/leftwidget.h
@@ -11,12 +11,15 @@ class LeftWidget:public QDockWidget
     Q_OBJECT
 public:
     LeftWidget(QWidget *parent = nullptr);
+
+    void reloadFileName();
+signals:
+    void sigSendAnalysisFileName(const QString&);
 private:
     void initData();
     void initFileName(QTreeWidgetItem*,const QString &folderPath);
     void expandAll(QTreeWidgetItem* item);
-signals:
-    void sigSendAnalysisFileName(const QString&);
+    void clearAllChildItems(QTreeWidgetItem* parentItem);
 protected:
 private slots:
     void slotTreeWidgetItemClicked(QTreeWidgetItem *item, int column);