diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 5f77cf7..c89293a 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -453,7 +453,7 @@ void MainWindow::startExperimentByDeviceInfo() {
     // 实验开始，清除上一个实验所有数据。
     Global::clearExperimentData();
 }
-
+// 停止实验
 void MainWindow::on_actionStop_triggered() {
     logde << " Stop experiment ...++++++++++++++++++";
 
@@ -544,6 +544,11 @@ void MainWindow::slotSaveExperimentalDataMsgBox() {
         QMessageBox::information(this, "文件保存", str, QMessageBox::Yes);
     }
 
+    // 清除数据action恢复功能
+    ui->actionClearAllData->setEnabled(true);
+    // 分析menu恢复功能
+    ui->menu_4->menuAction()->setEnabled(true);
+
 #if 0
     QMessageBox::StandardButton reply;
     reply = QMessageBox::question(this, "数据保存提示", "是否保存实验数据？",
@@ -691,17 +696,17 @@ void MainWindow::on_actionEnthalpyCorrectionSelection_triggered() {
 void MainWindow::on_actionPrintPreview_triggered() {
     logde << "print preview...";
 
-    if(Global::_curveFileDataVtr.empty()){
+    if (Global::_curveFileDataVtr.empty()) {
         showMesgBox("请先打开数据。");
         return;
     }
 
     _printPreviewForm->setPixmap(_centralWidget->getPixMap());
     // _printPreviewForm->_customPrintPreviewDialog->showMaximized();
-//    _printPreviewForm->setOrientation();
-    
+    //    _printPreviewForm->setOrientation();
+
     _printPreviewForm->_customPrintPreviewDialog->exec();
-    _printPreviewForm->_customPrintPreviewDialog->update(); // 可选，强制刷新
+    _printPreviewForm->_customPrintPreviewDialog->update();    // 可选，强制刷新
 }
 
 void MainWindow::on_actionOnsetTemperaturePoint_triggered() {
@@ -776,6 +781,7 @@ void MainWindow::on_actionSmoothness10_triggered() {
     smoothness(10);
 }
 
+// 原始数据
 void MainWindow::on_actionOriginalData_triggered() {
     if (!Global::_curveExperimentDataVtr.empty()) {
         // 删除所有objectName为experiment的curve.
@@ -787,6 +793,10 @@ void MainWindow::on_actionOriginalData_triggered() {
         }
     } else {
         // 当前数据为文件分析数据时，需要把当前文件下的所有数据都进行平滑处理。
+        if(_centralWidget->getCurrentCurve() == nullptr){
+            return;
+        }
+
         QString selectedCurveObjectName = _centralWidget->getCurrentCurve()->objectName();
         _centralWidget->deleteCurveByObjectName(selectedCurveObjectName);
 
@@ -801,7 +811,6 @@ void MainWindow::on_actionOriginalData_triggered() {
         }
     }
 
-
 #if 0
     // process data.
     QVector<Global::ExperimentData> targetDataVtr;
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 711e74a..57ec3ad 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -52,6 +52,7 @@ private slots:
     void on_actionConnectToDev_triggered();
     void on_actionNew_triggered();
     void on_actionStart_triggered();
+    // 停止实验
     void on_actionStop_triggered();
     void on_actionReadOnly_triggered();
     void on_actionRealTimeWidget_triggered();
@@ -115,7 +116,7 @@ private slots:
     void on_actionSmoothness8_triggered();
     void on_actionSmoothness9_triggered();
     void on_actionSmoothness10_triggered();
-
+// 原始数据
     void on_actionOriginalData_triggered();
 
 private:
diff --git a/src/ui/centralwidget.cpp b/src/ui/centralwidget.cpp
index ca2d3bb..5293c61 100644
--- a/src/ui/centralwidget.cpp
+++ b/src/ui/centralwidget.cpp
@@ -4,6 +4,7 @@
 #include <limits>
 #include <qcustomplot.h>
 #include <QMessageBox>
+#include <qpoint.h>
 
 #include "oitautoanalysis.h"
 #include "analysisoperationrecorder.h"
@@ -351,7 +352,7 @@ void CentralWidget::slotRecvCommonData(const CommonData &cd) {
 }
 
 void CentralWidget::slotRecvAnalysisFileName(const QString &filePath) {
-    logde<<"slotRecvAnalysisFileName, filePath:" << filePath.toStdString();
+    logde << "slotRecvAnalysisFileName, filePath:" << filePath.toStdString();
 
     if (_analysisFilePathVtr.contains(filePath)) {
         return;
@@ -370,11 +371,11 @@ void CentralWidget::slotRecvAnalysisFileName(const QString &filePath) {
     for (int i = Global::_curveFileDataVtr.size() - 1; i >= 0; --i) {
         if (Global::_curveFileDataVtr[i].filePath == filePath) {
             // 已经存在该文件数据，直接返回
-            logde<<"file exist...return.";
+            logde << "file exist...return.";
             return;
         }
     }
-    
+
     Global::_curveFileDataVtr.push_back(cfd);
 
     //
@@ -611,6 +612,15 @@ void CentralWidget::slotSelectionChangedByUser() {
             _currentCurve = curve;    // 更新当前选中的曲线
         }
     }
+    // 输出xy轴最值
+    auto  *ax   = _customPlot->xAxis;
+    auto  *ay   = _customPlot->yAxis;
+    double xMin = ax->range().lower;
+    double xMax = ax->range().upper;
+    double yMin = ay->range().lower;
+    double yMax = ay->range().upper;
+
+    logde << "min/max:" << xMin << "," << xMax << "," << yMin << "," << yMax;
 }
 
 void CentralWidget::uiLoadXlsxFileData() {
@@ -1080,6 +1090,7 @@ void CentralWidget::setEventHandlerEnable(const bool flag) {
 }
 
 QPointF CentralWidget::getTheCoordinatesOfTheTextBox(const QPointF point) {
+#if 0
     double xMax = _customPlot->xAxis->range().upper;
     double xMin = _customPlot->xAxis->range().lower;
 
@@ -1092,6 +1103,22 @@ QPointF CentralWidget::getTheCoordinatesOfTheTextBox(const QPointF point) {
     double distance = (xMax - xMin) / ticks.size();
 
     return QPointF(point.x() + distance, point.y());
+#endif
+    // 输出xy轴最值
+    auto  *ax   = _customPlot->xAxis;
+    auto  *ay   = _customPlot->yAxis;
+    double xMin = ax->range().lower;
+    double xMax = ax->range().upper;
+    double yMin = ay->range().lower;
+    double yMax = ay->range().upper;
+
+    logde << "min/max:" << xMin << "," << xMax << "," << yMin << "," << yMax;
+
+    double xDistance = (xMax - xMin);
+    double yDistance = (yMax - yMin);
+
+    return QPointF(xMin + xDistance / 5 * 4,
+                   yMin + yDistance / 5);
 }
 
 void CentralWidget::drawText(const QPointF point, const QString text, const QString objectName) {