[update] 插入附录，找不到附录标题排序的就不算此附录排序

src/pages/page1/saicComponents/Appendix.vue

@@ -132,6 +132,7 @@
                 const text = element.GetTableDescription()
                 if (text == 'appendix') {
                   let number = element.GetCell(0, 0).GetContent().GetElement(1);
+                  if (number) {
                     const getNumbering = number.GetNumbering()
                     if (getNumbering !== null) {
                       oNumbering = getNumbering;
@@ -140,6 +141,7 @@
                   }
                 }
               }
+            }
             oTable.SetTableDescription("appendix");
             if (!oNumbering) {
               oNumbering = oDocument.CreateNumbering("numbered");