添加全部选项

src/views/firstpage/RecommendResourceAdminView.vue

@@ -283,6 +283,9 @@ export default {
                             var $select = $('<select/>');
                             $select.attr('class', 'form-control validate[required]');
                             $select.attr('id', 'content' + tag);
+                            let $allOption = $('<option/>');
+                            $allOption.html('全部'); 
+                            $select.append($allOption);
                             for (let i = 0, len = data.length; i < len; i++) {
                                 let item = data[i];
                                 let $option = $('<option/>');