ElementInfo添加element字段

lib/report_info/element_info.dart

@@ -26,7 +26,10 @@ abstract class ElementInfo {
   @override
   String? id;
 
+  IElement? element;
+
   ElementInfo.fromElement(IElement element) {
+    this.element = element;
     elementType = element.elementType;
     index = element.index;
     measureTag = element.measureTag;