diff --git a/api/dao/QuestionQa.go b/api/dao/QuestionQa.go
index 6cdb9d3..cf6e7b4 100644
--- a/api/dao/QuestionQa.go
+++ b/api/dao/QuestionQa.go
@@ -165,6 +165,7 @@ func (r *QuestionQaDao) GetQuestionQaPageSearch(req requests.GetQuestionQaPage,
 
 	// 排序
 	if req.Order != nil {
+		// 有效期
 		if req.Order.QaExpireTime != "" {
 			if req.Order.QaExpireTime != "desc" && req.Order.QaExpireTime != "asc" {
 				return nil, 0, errors.New("排序字段错误")
@@ -173,6 +174,7 @@ func (r *QuestionQaDao) GetQuestionQaPageSearch(req requests.GetQuestionQaPage,
 			query = query.Order("qa_expire_time " + req.Order.QaExpireTime)
 		}
 
+		// 题目数量
 		if req.Order.QaQuantity != "" {
 			if req.Order.QaQuantity != "desc" && req.Order.QaQuantity != "asc" {
 				return nil, 0, errors.New("排序字段错误")
@@ -181,6 +183,7 @@ func (r *QuestionQaDao) GetQuestionQaPageSearch(req requests.GetQuestionQaPage,
 			query = query.Order("qa_quantity " + req.Order.QaQuantity)
 		}
 
+		// 修改时间
 		if req.Order.UpdatedAt != "" {
 			if req.Order.UpdatedAt != "desc" && req.Order.UpdatedAt != "asc" {
 				return nil, 0, errors.New("排序字段错误")
diff --git a/config.yaml b/config.yaml
index e5912e1..ff014d7 100644
--- a/config.yaml
+++ b/config.yaml
@@ -39,5 +39,5 @@ oss:
   oss-access-key: LTAI5tKmFrVCghcxX7yHyGhm
   oss-access-key-secret: q1aiIZCJJuf92YbKk2cSXnPES4zx26
   oss-bucket: dev-knowledge
-  oss-endpoint: oss-cn-chengdu.aliyuncs.com
+  oss-endpoint: oss-cn-beijing.aliyuncs.com
   oss-custom-domain-name: https://dev-knowledge.oss-cn-beijing.aliyuncs.com