完善功能

app/admin/service/goods/GoodsService.php

@@ -1436,7 +1436,7 @@ class GoodsService
                 } elseif (empty($model->goods_attribute_json)) {
                     $attributeJson = [];
                 }
-                $attributeJson['teacherst'] = $params['teachers'];
+                $attributeJson['teachers'] = $params['teachers'];
                 $model->goods_attribute_json = json_encode($attributeJson);
             }
             if (isset($params['work_time'])){