diff --git a/internal/dao/storage/localoss.go b/internal/dao/storage/localoss.go
index 81ab2435..6ed4a165 100644
--- a/internal/dao/storage/localoss.go
+++ b/internal/dao/storage/localoss.go
@@ -72,8 +72,11 @@ func (s *localossServant) DeleteObjcets(objectKeys []string) (err error) {
 }
 
 func (s *localossServant) IsObjectExist(objectKey string) (bool, error) {
-	// TODO
-	return false, nil
+	fi, err := os.Stat(s.savePath + objectKey)
+	if err != nil {
+		return false, err
+	}
+	return !fi.IsDir(), nil
 }
 
 func (s *localossServant) SignURL(objectKey string, expiredInSec int64) (string, error) {
diff --git a/internal/model/post_content.go b/internal/model/post_content.go
index d5552e78..3829ca8c 100644
--- a/internal/model/post_content.go
+++ b/internal/model/post_content.go
@@ -39,6 +39,7 @@ type PostContent struct {
 	Type    PostContentT `json:"type"`
 	Sort    int64        `json:"sort"`
 }
+
 type PostContentFormated struct {
 	ID      int64        `json:"id"`
 	PostID  int64        `json:"post_id"`
diff --git a/internal/routers/api/post.go b/internal/routers/api/post.go
index 900f04e2..f580428f 100644
--- a/internal/routers/api/post.go
+++ b/internal/routers/api/post.go
@@ -101,7 +101,7 @@ func DeletePost(c *gin.Context) {
 	err := service.DeletePost(user, param.ID)
 	if err != nil {
 		logrus.Errorf("service.DeletePost err: %v\n", err)
-		response.ToErrorResponse(errcode.DeletePostFailed)
+		response.ToErrorResponse(err)
 		return
 	}