diff --git a/src/AnalysTool.pro b/src/AnalysTool.pro
index b468633..4772a8c 100644
--- a/src/AnalysTool.pro
+++ b/src/AnalysTool.pro
@@ -18,6 +18,7 @@ DEFINES += QT_DEPRECATED_WARNINGS
 include(thirdparty\QtXlsxWriter-0.3.0\src\xlsx\qtxlsx.pri)
 
 SOURCES += \
+    data/confighandler.cpp \
     data/filemanager.cpp \
     data/pointcalculate.cpp \
     data/txthandler.cpp \
@@ -46,6 +47,7 @@ SOURCES += \
     data/xlsxhandler.cpp
 
 HEADERS += \
+    data/confighandler.h \
     data/txthandler.h \
     global.h \
     data/filemanager.h \
diff --git a/src/data/confighandler.cpp b/src/data/confighandler.cpp
new file mode 100644
index 0000000..4fb515a
--- /dev/null
+++ b/src/data/confighandler.cpp
@@ -0,0 +1,95 @@
+#include <qdebug.h>
+#include <qfile.h>
+#include <QJsonParseError>
+#include <QJsonObject>
+
+#include "confighandler.h"
+#include "logger.h"
+
+QMap<QString, QVariant> ConfigHandler::_configMap;
+
+void ConfigHandler::reader()
+{
+    // 检查文件是否已经存在
+    if (QFile::exists(ConConfigFilePath)) {
+        logde << "config config file existed. ";
+    }else{
+        writer(true);
+    }
+
+    // 读取JSON文件
+    QFile file(ConConfigFilePath);
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)){
+        qDebug()<<"file open failed.";
+        return ;
+    }
+
+    // 解析JSON数据
+    QJsonParseError error;
+    QJsonDocument doc = QJsonDocument::fromJson(file.readAll(), &error);
+    if (error.error != QJsonParseError::NoError) {
+        qDebug() << "JSON解析错误:" << error.errorString();
+        return ;
+    }
+
+    // 读取配置项
+    QJsonObject obj = doc.object();
+
+    _configMap[ConInstrumentCoefficientStr] = QVariant(obj[ConInstrumentCoefficientStr].toDouble());
+}
+
+void ConfigHandler::createDefaultFile()
+{
+    logde<<"createDefaultFile";
+
+    // 创建一个新的 JSON 对象
+    QJsonObject obj;
+    //    obj["name"] = "Alice";
+    //    obj["age"] = 30;
+    //    obj["city"] = "New York";
+
+    obj[ConInstrumentCoefficientStr] =
+            ConDefaultMap[ConInstrumentCoefficientStr].toFloat();
+
+    // 将 QJsonObject 转换为 QJsonDocument
+    QJsonDocument doc(obj);
+
+    // 打开文件进行写入，如果文件不存在则会自动创建文件
+    QFile file(ConConfigFilePath);
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+        qDebug() << "无法打开文件进行写入!";
+        return;
+    }
+
+    // 将 QJsonDocument 写入文件
+    file.write(doc.toJson());
+    file.close();  // 确保文件关闭
+}
+
+void ConfigHandler::writer(const bool writeRealDataFlag)
+{
+    QJsonObject obj;
+
+    const  QMap<QString, QVariant> *mapPtr = &ConDefaultMap;
+    if(writeRealDataFlag){
+        mapPtr = &_configMap;
+    }
+
+    obj[ConInstrumentCoefficientStr] =
+            (*mapPtr)[ConInstrumentCoefficientStr].toFloat();
+
+    // 将 QJsonObject 转换为 QJsonDocument
+    QJsonDocument doc(obj);
+
+    // 打开文件进行写入，如果文件不存在则会自动创建文件
+    QFile file(ConConfigFilePath);
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+        qDebug() << "无法打开文件进行写入!";
+        return;
+    }
+
+    // 将 QJsonDocument 写入文件
+    file.write(doc.toJson());
+    file.close();  // 确保文件关闭
+}
+
diff --git a/src/data/confighandler.h b/src/data/confighandler.h
new file mode 100644
index 0000000..d115414
--- /dev/null
+++ b/src/data/confighandler.h
@@ -0,0 +1,29 @@
+#ifndef JSONHANDLER_H
+#define JSONHANDLER_H
+
+#include <QtCore>
+
+const QString ConInstrumentCoefficientStr  = "InstrumentCoefficient";
+
+namespace ConfigHandler {
+void reader();
+void createDefaultFile();
+/**
+ * @brief writer
+ * @param writeRealDataFlag
+ * true:Write _configMap content.
+ * false:Write ConDefaultMap content.
+ */
+void writer(const bool writeRealDataFlag = true);
+
+const QString ConConfigFilePath = QDir::currentPath() + "/config.json";
+
+const QMap<QString, QVariant> ConDefaultMap = {
+    {ConInstrumentCoefficientStr, 1.001f},
+};
+
+extern QMap<QString, QVariant> _configMap;
+}
+
+
+#endif // JSONHANDLER_H
diff --git a/src/data/pointcalculate.cpp b/src/data/pointcalculate.cpp
index d8bc7a7..2f9763d 100644
--- a/src/data/pointcalculate.cpp
+++ b/src/data/pointcalculate.cpp
@@ -502,3 +502,18 @@ QPair<float, float> PointCalculate::getMaxMinValue()
 
     return QPair<float, float>(minDsc, maxDsc);
 }
+
+QVector<Global::ExperimentData> PointCalculate::getDataInXRange(const float x1, const float x2)
+{
+    QVector<Global::ExperimentData> targetVtr;
+    for(const Global::ExperimentData &ed : _dataVtr) {
+        if(x1 < ed.sampleTemp && ed.sampleTemp < x2){
+            targetVtr.push_back(ed);
+        }else if (ed.sampleTemp > x2){
+            break;
+        }
+
+    }
+
+    return targetVtr;
+}
diff --git a/src/data/pointcalculate.h b/src/data/pointcalculate.h
index a899ce3..ce4750b 100644
--- a/src/data/pointcalculate.h
+++ b/src/data/pointcalculate.h
@@ -9,6 +9,7 @@ namespace PointCalculate{
 void setExperimentData(const QVector<Global::ExperimentData>&);
 
 QPair<QPointF,QPointF> getStartAndEndPoint();
+QVector<Global::ExperimentData> getDataInXRange(const float, const float);
 
 void setRegionPointX(const float,const float);
 QPointF getClosestPointByX(const float);
diff --git a/src/global.h b/src/global.h
index dd1c9c1..10d7b14 100644
--- a/src/global.h
+++ b/src/global.h
@@ -67,6 +67,7 @@ struct CurveFileData{
 
 struct CurveExperimentData{
     QCPCurve * curve;
+    QString fileName;
     QVector<Global::ExperimentData> dataVtr;
 };
 
diff --git a/src/main.cpp b/src/main.cpp
index 773f91e..6c24162 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -11,6 +11,7 @@
 #include "logger.h"
 #include "xlsxhandler.h"
 #include "aboutform.h"
+#include "confighandler.h"
 
 int main(int argc, char *argv[])
 {
@@ -19,7 +20,18 @@ int main(int argc, char *argv[])
 
     Logger::instance();
     logde<<"main...";
+    //
+    ConfigHandler::reader();
+    logde<<"config,instrument coefficient:"
+        <<ConfigHandler::_configMap[ConInstrumentCoefficientStr].toFloat();
 
+    ConfigHandler::_configMap[ConInstrumentCoefficientStr] = 2.001f;
+
+    ConfigHandler::writer(false);
+    ConfigHandler::reader();
+    logde<<"config,instrument coefficient:"
+        <<ConfigHandler::_configMap[ConInstrumentCoefficientStr].toFloat();
+    //
     QApplication::setAttribute(Qt::AA_EnableHighDpiScaling); // 启用高DPI缩放
     QApplication a(argc, argv);
     a.setWindowIcon(QIcon(":/images/logo.png"));
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index f4c1adf..61b6f1b 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -178,6 +178,8 @@ void MainWindow::setSubWidgetAttribute(QWidget *widget)
 {
     widget->setWindowModality(Qt::ApplicationModal);
     widget->setWindowFlags(Qt::Dialog);
+
+    widget->setFixedSize(widget->geometry().width(),widget->geometry().height());
 }
 
 void MainWindow::on_actionStop_triggered()
diff --git a/src/ui/aboutform.cpp b/src/ui/aboutform.cpp
index 421b78b..40b5b08 100644
--- a/src/ui/aboutform.cpp
+++ b/src/ui/aboutform.cpp
@@ -9,7 +9,7 @@ AboutForm::AboutForm(QWidget *parent) :
 {
     ui->setupUi(this);
 
-    setFixedSize(geometry().width(),geometry().height());
+//    setFixedSize(geometry().width(),geometry().height());
 
     setWindowTitle("About");
 
diff --git a/src/ui/centralwidget.cpp b/src/ui/centralwidget.cpp
index f24adb7..1152592 100644
--- a/src/ui/centralwidget.cpp
+++ b/src/ui/centralwidget.cpp
@@ -161,15 +161,15 @@ void CentralWidget::slotRecvCommonData(const CommonData &cd)
     pEdVtr->push_back(ed);
 }
 
-void CentralWidget::slotRecvAnalysisFileName(const QString &fileName)
+void CentralWidget::slotRecvAnalysisFileName(const QString &filePath)
 {
-    qDebug() << "slotRecvAnalysisFileName" << fileName;
+    qDebug() << "slotRecvAnalysisFileName" << filePath;
 
     // todo.禁止重复文件添加。
     Global::CurveFileData cfd;
-    if(XlsxHandler::readFile(fileName,cfd) != 0){
-       QMessageBox::warning((QWidget*)this->parent(), "warnning", "File parse error.");
-       return;
+    if(XlsxHandler::readFile(filePath,cfd) != 0){
+        QMessageBox::warning((QWidget*)this->parent(), "warnning", "File parse error.");
+        return;
     }
 
     for(int i = 0;i < cfd.phaseTotalVtr.size();i++){
@@ -189,7 +189,6 @@ void CentralWidget::slotRecvAnalysisFileName(const QString &fileName)
         float absY = std::abs(maxMinPair.first - maxMinPair.second);
         _customPlot->yAxis->setRange(- absY * 2,absY *2);
 
-        // 设置坐标轴标签
         _customPlot->yAxis->setLabel("DSC/mW");
         _customPlot->xAxis->setLabel("Temp/℃");
 
@@ -201,13 +200,15 @@ void CentralWidget::slotRecvAnalysisFileName(const QString &fileName)
             tVtr.push_back(index++);
             xVtr.push_back(ed.sampleTemp);
             yVtr.push_back(ed.dsc);
-
         }
 
         _currentCurve = new QCPCurve(_customPlot->xAxis, _customPlot->yAxis);
         _currentCurve->setData(tVtr, xVtr, yVtr);
         _currentCurve->setSelectable(QCP::stWhole); // 设置曲线可选
 
+        // Add data to global parameter.
+        QFileInfo fileInfo(filePath);
+        Global::_curveExperimentDataVtr.push_back({_currentCurve,fileInfo.fileName(),pti.dataVtr});
     }
 
     _customPlot->replot();
@@ -573,8 +574,6 @@ void CentralWidget::drawText(const QPointF point, const QString text)
 
 void CentralWidget::fillGraph(const double x1, const double x2)
 {
-    //todo.未寻找x1\x2之间最大值。
-
     double y1 = PointCalculate::getClosestPointByX(x1).y();
     double y2 = PointCalculate::getClosestPointByX(x2).y();
 
@@ -588,16 +587,24 @@ void CentralWidget::fillGraph(const double x1, const double x2)
     QCPGraph *mainGraph = _customPlot->addGraph();
     mainGraph->setData(xVtr, yVtr);
 
-    // 样式配置
     mainGraph->setPen(QPen(Qt::red, 1));
 
-#if 0
-    _currentGraph->setBrush(QBrush(Qt::lightGray));
-    _currentGraph->setChannelFillGraph(mainGraph);
-#endif
+    QVector<Global::ExperimentData> curveDataVtr =
+            PointCalculate::getDataInXRange(x1,x2);
+
+    QCPGraph *fillGraph = _customPlot->addGraph();
+    QVector<double> fillX, fillY;
+
+    for(int i = 0;i < curveDataVtr.size();i++){
+        Global::ExperimentData &ed = curveDataVtr[i];
+        fillX<<ed.sampleTemp;
+        fillY<<ed.dsc;
+    }
+    fillGraph->setData(fillX, fillY);
+
+    fillGraph->setBrush(QBrush(Qt::green, Qt::SolidPattern));
+    fillGraph->setChannelFillGraph(mainGraph);
 
-    //    customPlot->graph(0)->setChannelFillGraph(customPlot->graph(1));
-    //    _customPlot->graph(1);
     _customPlot->replot();
 }
 
diff --git a/src/ui/enthalpydatacorrectionform.cpp b/src/ui/enthalpydatacorrectionform.cpp
index 61e6693..c737576 100644
--- a/src/ui/enthalpydatacorrectionform.cpp
+++ b/src/ui/enthalpydatacorrectionform.cpp
@@ -7,6 +7,8 @@ EnthalpyDataCorrectionForm::EnthalpyDataCorrectionForm(QWidget *parent) :
 {
     ui->setupUi(this);
 
+    setWindowTitle("热焓校正");
+
 //    ui->lineEditTheoryIn->setText("28.6");
 //    ui->lineEditTheorySn->setText("60.5");
 //    ui->lineEditTheoryBi->setText("53.3");
diff --git a/src/ui/instrumentcoefficientform.cpp b/src/ui/instrumentcoefficientform.cpp
index 7b23ee2..2d33162 100644
--- a/src/ui/instrumentcoefficientform.cpp
+++ b/src/ui/instrumentcoefficientform.cpp
@@ -1,11 +1,19 @@
 #include "instrumentcoefficientform.h"
 #include "ui_instrumentcoefficientform.h"
+#include "confighandler.h"
 
 InstrumentCoefficientForm::InstrumentCoefficientForm(QWidget *parent) :
     QWidget(parent),
     ui(new Ui::InstrumentCoefficientForm)
 {
     ui->setupUi(this);
+
+    setWindowTitle("仪器系数");
+
+    ui->LineEditCoefficient->setText(
+                QString::number(
+                    ConfigHandler::_configMap[ConInstrumentCoefficientStr].toFloat(),
+                    'f',3));
 }
 
 InstrumentCoefficientForm::~InstrumentCoefficientForm()
@@ -15,7 +23,14 @@ InstrumentCoefficientForm::~InstrumentCoefficientForm()
 
 void InstrumentCoefficientForm::on_pushButtonCalculate_clicked()
 {
+    float theory = ui->LineEditTheory->text().toFloat();
+    float measure = ui->LineEditActualMeasurement->text().toFloat();
 
+    float instrumentCoefficient = theory/measure;
+    ConfigHandler::_configMap[ConInstrumentCoefficientStr] = instrumentCoefficient;
+    ConfigHandler::writer();
+
+    ui->LineEditCoefficient->setText(QString::number(instrumentCoefficient,'f',3));
 }
 
 void InstrumentCoefficientForm::on_pushButtonCancel_clicked()
diff --git a/src/ui/specificheatcomparisonmethodform.cpp b/src/ui/specificheatcomparisonmethodform.cpp
index 58e73d1..4498802 100644
--- a/src/ui/specificheatcomparisonmethodform.cpp
+++ b/src/ui/specificheatcomparisonmethodform.cpp
@@ -15,17 +15,22 @@ SpecificHeatComparisonMethodForm::SpecificHeatComparisonMethodForm(QWidget *pare
 {
     ui->setupUi(this);
 
+    setWindowTitle("比热比较法");
+
     _baseLineLineEdit = new QLineEdit(ui->groupBoxDataFile);
     _baseLineLabel = new QLabel(ui->groupBoxDataFile);
     _baseLineLabel->setStyleSheet("background-color: red;");
+    _baseLineLabel->setFixedWidth(22);
 
     _standardSampleLineEdit = new QLineEdit(ui->groupBoxDataFile);
     _standardSampleLabel = new QLabel(ui->groupBoxDataFile);
     _standardSampleLabel->setStyleSheet("background-color: green;");
+    _standardSampleLabel->setFixedWidth(22);
 
     _sampleLineEdit = new QLineEdit(ui->groupBoxDataFile);
     _sampleLabel = new QLabel(ui->groupBoxDataFile);
     _sampleLabel->setStyleSheet("background-color: black;");
+    _sampleLabel->setFixedWidth(22);
 
     QHBoxLayout *baseLineLayout = new QHBoxLayout;
     baseLineLayout->addWidget(_baseLineLineEdit);
@@ -80,26 +85,38 @@ void SpecificHeatComparisonMethodForm::slotSetCurve(const int type,  QCPCurve *c
     }
 }
 
-void SpecificHeatComparisonMethodForm::on_pushButtonCalculate_clicked()
+void SpecificHeatComparisonMethodForm::showEvent(QShowEvent *event)
 {
     auto& curveDataVtr = Global::_curveExperimentDataVtr;
-    QVector<Global::ExperimentData> *baseLineDataVtr = nullptr,
-            *standardSampleDataVtr = nullptr,
-            *sampleDataVtr = nullptr;
+    //    QVector<Global::ExperimentData> *baseLineDataVtr = nullptr,
+    //            *standardSampleDataVtr = nullptr,
+    //            *sampleDataVtr = nullptr;
 
     for (auto& item : curveDataVtr) {
         if(item.curve == _baseLineCurve){
-            baseLineDataVtr = &(item.dataVtr);
+            _baseLineLineEdit->setText(item.fileName);
+            _baseLineDataVtr = &(item.dataVtr);
         }else if(item.curve == _standardSampleCurve){
-            standardSampleDataVtr = &(item.dataVtr);
+            _standardSampleLineEdit->setText(item.fileName);
+            _standardSampleDataVtr = &(item.dataVtr);
         }else if(item.curve == _sampleCurve){
-            sampleDataVtr = &(item.dataVtr);
+            _sampleLineEdit->setText(item.fileName);
+            _sampleDataVtr = &(item.dataVtr);
         }
     }
 
-    if(!baseLineDataVtr ||
-            !standardSampleDataVtr||
-            !sampleDataVtr){
+    if(!_baseLineDataVtr ||!_standardSampleDataVtr||
+            !_sampleDataVtr){
+        logde<<"Base,standard,sample not selected.";
+        return;
+    }
+
+}
+
+void SpecificHeatComparisonMethodForm::on_pushButtonCalculate_clicked()
+{
+    if(!_baseLineDataVtr ||!_standardSampleDataVtr||
+            !_sampleDataVtr){
         logde<<"Base,standard,sample not selected.";
         return;
     }
@@ -107,13 +124,13 @@ void SpecificHeatComparisonMethodForm::on_pushButtonCalculate_clicked()
     //
     float targetTemperature = ui->LineEditTemperature->text().toFloat();
 
-    PointCalculate::setExperimentData(*baseLineDataVtr);
+    PointCalculate::setExperimentData(*_baseLineDataVtr);
     QPointF baseLinePoint = PointCalculate::getClosestPointByX(targetTemperature);
 
-    PointCalculate::setExperimentData(*standardSampleDataVtr);
+    PointCalculate::setExperimentData(*_standardSampleDataVtr);
     QPointF standardSamplePoint = PointCalculate::getClosestPointByX(targetTemperature);
 
-    PointCalculate::setExperimentData(*sampleDataVtr);
+    PointCalculate::setExperimentData(*_sampleDataVtr);
     QPointF samplePoint = PointCalculate::getClosestPointByX(targetTemperature);
 
     logde<<"baseLinePoint:"<<baseLinePoint.x()<<","<<baseLinePoint.y();
diff --git a/src/ui/specificheatcomparisonmethodform.h b/src/ui/specificheatcomparisonmethodform.h
index 81bcb5f..c0e05a7 100644
--- a/src/ui/specificheatcomparisonmethodform.h
+++ b/src/ui/specificheatcomparisonmethodform.h
@@ -6,6 +6,8 @@
 #include <QLabel>
 #include <qcustomplot.h>
 
+#include "global.h"
+
 namespace Ui {
 class SpecificHeatComparisonMethodForm;
 }
@@ -25,6 +27,8 @@ public:
     };
 public slots:
     void slotSetCurve(const int ,QCPCurve*);
+protected:
+    void showEvent(QShowEvent *event) override;
 private slots:
     void on_pushButtonCalculate_clicked();
 
@@ -39,6 +43,11 @@ private:
     QLabel *_baseLineLabel,*_standardSampleLabel,*_sampleLabel;
 
     QCPCurve *_baseLineCurve,*_standardSampleCurve,*_sampleCurve;
+
+    QVector<Global::ExperimentData> *_baseLineDataVtr ,
+    *_standardSampleDataVtr ,
+    *_sampleDataVtr ;
+
 };
 
 #endif // SPECIFICHEATCOMPARISONMETHODFORM_H