diff --git a/designer-base/src/main/java/com/fr/design/data/datapane/SummaryMethodComboBox.java b/designer-base/src/main/java/com/fr/design/data/datapane/SummaryMethodComboBox.java
index bd57e7ea2..7aee00e24 100644
--- a/designer-base/src/main/java/com/fr/design/data/datapane/SummaryMethodComboBox.java
+++ b/designer-base/src/main/java/com/fr/design/data/datapane/SummaryMethodComboBox.java
@@ -13,6 +13,12 @@ import com.fr.general.ComparatorUtils;
 import com.fr.log.FineLoggerFactory;
 import com.fr.plugin.chart.base.FirstFunction;
 
+/**
+ * 图表数据汇总方式下拉框
+ *
+ * 支持首个，最后一个，求和，平均，最大值，最小值，个数
+ *
+ */
 public class SummaryMethodComboBox extends UIComboBox {
     public static final String[] CALCULATE_ARRAY = {Toolkit.i18nText("Fine-Design_Chart_Data_Function_First"), Toolkit.i18nText("Fine-Design_Chart_Data_Function_Last"),
             Toolkit.i18nText("Fine-Design_Chart_Data_Function_Sum"), Toolkit.i18nText("Fine-Design_Chart_Data_Function_Average"),