all done

src/views/conference/Apply.vue

@@ -75,6 +75,10 @@
                     border  v-loading="loading"
                     default-expand-all row-key="id"
                     style="width: 100%">
+                    <el-table-column
+                    prop="id"  
+                    label="订单序号">
+                    </el-table-column>
                     <el-table-column width="200"
                     prop="conference_name"  
                     label="会议名称">