diff --git a/javascript/common/Utils.js b/javascript/common/Utils.js
index 75aa117..6c960d1 100644
--- a/javascript/common/Utils.js
+++ b/javascript/common/Utils.js
@@ -134,7 +134,7 @@ window.Utils = {
      * @returns {*} 字段值
      */
     getFiledValueByName: function (fieldName, rowIndex) {
-        return WfForm.getFieldValue(Utils.convertNameObjToId(fieldName) + rowIndex ? '_' + rowIndex : '')
+        return WfForm.getFieldValue(Utils.convertNameObjToId(fieldName) + (rowIndex ? '_' + rowIndex : ''))
     },
 
     /**