diff --git a/experiment_data/sample_data/~$铟(1).xlsx b/experiment_data/sample_data/~$铟(1).xlsx
new file mode 100644
index 0000000..d4a5841
Binary files /dev/null and b/experiment_data/sample_data/~$铟(1).xlsx differ
diff --git a/experiment_data/sample_data/铟(1).xlsx b/experiment_data/sample_data/铟(1).xlsx
new file mode 100644
index 0000000..f4424c4
Binary files /dev/null and b/experiment_data/sample_data/铟(1).xlsx differ
diff --git a/src/data/pointcalculate.cpp b/src/data/pointcalculate.cpp
index 78be58a..acb76bf 100644
--- a/src/data/pointcalculate.cpp
+++ b/src/data/pointcalculate.cpp
@@ -274,6 +274,9 @@ float PointCalculate::calculateArea() {
         logde<<"coefficient:"<<coefficient;
     }
 
+    logde<<"integral:"<<integral;
+    logde<<"coefficient:"<<coefficient;
+    logde<<"Global::DefaultParamter:"<<Global::DefaultParamter;
 
     float area = integral * coefficient * Global::DefaultParamter;
 
diff --git a/src/global.cpp b/src/global.cpp
index c4451b4..9fbe875 100644
--- a/src/global.cpp
+++ b/src/global.cpp
@@ -164,6 +164,17 @@ QString getFileName(const QString filePath)
     return fileInfo.fileName();
 }
 
+double converStrToDouble(const QString str)
+{
+    bool ok;
+        double value = str.toDouble(&ok); // 将字符串转换为 double，并检查是否成功
+        if (!ok) {
+            qDebug() << "转换失败，输入的字符串不是有效的数字";
+            return 0.0; // 如果转换失败，返回默认值
+        }
+        return value;
+}
+
 }
 
 #if 0
diff --git a/src/global.h b/src/global.h
index 75000a7..abdfbd1 100644
--- a/src/global.h
+++ b/src/global.h
@@ -177,6 +177,7 @@ extern double _OITAutoAnalysisThreshold;
 
 // common func
 QString converDoubleToStr(const double);
+double converStrToDouble(const QString);
 void quadraticLeastSquaresFit(double x[], double y[], int n, double coeff[]);
 double findNegativeStartPoint(double m, double b, double start, double end);
 bool isZero(double value, double epsilon = 1e-9);
diff --git a/src/ui/centralwidget.cpp b/src/ui/centralwidget.cpp
index ab63cc2..a245d2f 100644
--- a/src/ui/centralwidget.cpp
+++ b/src/ui/centralwidget.cpp
@@ -1411,21 +1411,25 @@ void CentralWidget::calculateAnalysisResult(
 
         //enthalpy
         double sampleWeight = 1.0f;
-        for(Global::CurveFileData& cfd:Global::_curveFileDataVtr){
-            for(Global::PhaseTotalInfo& pti:cfd.phaseTotalVtr){
+        if(Global::_curveFileDataVtr.empty()){
+               sampleWeight = Global::converStrToDouble(Global::_experimentInfo.sampleWeight);
+        }else{
+            for(Global::CurveFileData& cfd:Global::_curveFileDataVtr){
+                for(Global::PhaseTotalInfo& pti:cfd.phaseTotalVtr){
 
 #if 0
-                if(_currentCurve && _currentCurve == pti.curve){
-                    sampleWeight = cfd.ei.sampleWeight.toDouble();
-                }
-#endif
-                if(_currentCurve){
-                    if(_currentCurve == pti.curve){
+                    if(_currentCurve && _currentCurve == pti.curve){
                         sampleWeight = cfd.ei.sampleWeight.toDouble();
-                    }else{
                     }
-                }else{
-                    //                    logde<<"current curve nullptr.";
+#endif
+                    if(_currentCurve){
+                        if(_currentCurve == pti.curve){
+                            sampleWeight = cfd.ei.sampleWeight.toDouble();
+                        }else{
+                        }
+                    }else{
+                        //                    logde<<"current curve nullptr.";
+                    }
                 }
             }
         }