update 子表添加排序

src/business/platform/form/formrender/dynamic-form/dynamic-form-table.vue

@@ -22,7 +22,7 @@
                         <el-table-column v-if="!tableReadonly" type="selection" width="50" />
                         <el-table-column v-if="field.field_options.index" type="index" :label="field.field_options.index_name ? field.field_options.index_name : '序号'" :width="field.field_options.index_width ? field.field_options.index_width : 50" />
                         <template v-for="(column, j) in displayColumns">
-                            <el-table-column show-overflow-tooltip v-if="!columnHidden(column) && column.field_type != 'desc' && column.label != ''" :key="j" :prop="column.name" :width="column.field_options.custom_class || null">
+                            <el-table-column sortable show-overflow-tooltip v-if="!columnHidden(column) && column.field_type != 'desc' && column.label != ''" :key="j" :prop="column.name" :width="column.field_options.custom_class || null">
                                 <!--  :width="column.field_options.is_label_width ?column.field_options.label_width + (column.field_options.label_width_unit || 'px') :null"-->
                                 <template slot="header">
                                     {{ $utils.isNotEmpty(column.field_options.units) ? column.label + '(' + column.field_options.units + ')' : column.label }}