diff --git a/app/Helpers/ArticleHelper.php b/app/Helpers/ArticleHelper.php
index fc336e7..4379b60 100644
--- a/app/Helpers/ArticleHelper.php
+++ b/app/Helpers/ArticleHelper.php
@@ -33,7 +33,7 @@ class ArticleHelper
             // 获取文件扩展名（如果没有扩展名，需要根据图片内容判断）
             $extension = pathinfo($imageName, PATHINFO_EXTENSION);
             if (empty($extension)) {
-                $imageContent = file_get_contents(trim($imageUrl, '/'));
+                $imageContent = file_get_contents(trim($imageUrl, '\\'));
                 $finfo = finfo_open(FILEINFO_MIME_TYPE); // 获取 MIME 类型
                 $mimeType = finfo_buffer($finfo, $imageContent);
                 finfo_close($finfo);