diff --git a/designer-realize/src/main/java/com/fr/grid/AbstractGridHeaderMouseHandler.java b/designer-realize/src/main/java/com/fr/grid/AbstractGridHeaderMouseHandler.java
index 760c1f04a..2927f74d6 100644
--- a/designer-realize/src/main/java/com/fr/grid/AbstractGridHeaderMouseHandler.java
+++ b/designer-realize/src/main/java/com/fr/grid/AbstractGridHeaderMouseHandler.java
@@ -250,7 +250,7 @@ public abstract class AbstractGridHeaderMouseHandler extends MouseInputAdapter {
 
     /**
      * 如果行列中有只选中一个的情况，更新下endIndex，防止列宽或行宽不匹配
-     * @param selection
+     * @param selection 与ElementCasePane绑定的选择对象
      */
     private void checkEndMultiSelectIndex(Selection selection) {
         if (selection.getSelectedColumns().length == ONLY_SELECT_ONE || selection.getSelectedRows().length == ONLY_SELECT_ONE) {