diff --git a/application/api/controller/Article.php b/application/api/controller/Article.php
index d2f544a..1caa13e 100644
--- a/application/api/controller/Article.php
+++ b/application/api/controller/Article.php
@@ -1863,11 +1863,11 @@ class Article extends Controller {
         $res = $this->article_file_obj->where(['file_url' => $url])->find();
         if ($res) {//编辑的时候不能重复存储
             return true;
-        }else if($type_name=='picturesAndTables' && $url == ''){
+        }else if($type_name=='picturesAndTables' && trim($url) == ''){
             return true;
-        }else if($type_name=='coverLetter' && $url == ''){
+        }else if($type_name=='coverLetter' && trim($url) == ''){
             return true;
-        }else if($type_name=='totalpage' && $url == ''){
+        }else if($type_name=='totalpage' && trim($url) == ''){
             return true;
         }
         $insert_data['article_id'] = $article_id;