diff --git a/qtpropertybrowser/qtColorSchemeComboBox.cpp b/qtpropertybrowser/qtColorSchemeComboBox.cpp
index a9a52dd..c68edf1 100644
--- a/qtpropertybrowser/qtColorSchemeComboBox.cpp
+++ b/qtpropertybrowser/qtColorSchemeComboBox.cpp
@@ -93,11 +93,15 @@ QVector<QtColorItem> paiInpolation(const QVector<QtColorItem> &colorList,int tot
 {
     QVector<QtColorItem> newColorList;
 
+	if (totalColorNum <= 1)
+		totalColorNum = 2;
+
     // 填充新的颜色项目
     for(int i=0;i<totalColorNum;i++)
         newColorList.push_back(QtColorItem());
 
     float gap=(colorList.count()-1)*1.0/(totalColorNum-1);
+
     for(int i=0;i<totalColorNum;i++)
     {
         float pos=i*gap;