下单查询班级接口优化

@@ -788,11 +788,11 @@ class PersonalcenterController extends WeChatBaseController{
                 $class = explode('-',$val['class']);
                 if($val['grade'] == '学龄前') {
                     foreach ($class as $kc=>$vc) {
-                        $grade_class_show[] = $val['grade'].' -'.$vc;
+                        $grade_class_show[] = $val['grade'].'-'.$vc;
                     }
                 } else {
                     for($i=$class[0];$i<=$class[1];$i++){
-                        $grade_class_show[] = $val['grade'].' - '.$i."班";
+                        $grade_class_show[] = $val['grade'].'- '.$i."班";
                     }
                 }
             }