增加注释

include/traits/tdata.class.php

@@ -528,6 +528,7 @@ trait tdata {
                     $order = " la.l_endtime {$this->form['order_l_endtime']} ";
                 break;
             case 'villages':
+                // 默认按照街道排序
                 $order = ' CONVERT( vi.`v_address` USING gbk ) COLLATE gbk_chinese_ci ASC ';
                 if ($this->form['order_v_enum'])
                     $order = " v_enum {$this->form['order_v_enum']} ";