add not data msg show

themes/beauty/views/site/index.php

@@ -105,6 +105,10 @@ eof;
         </div>
 eof;
             }
+        }else if (empty($category['directories']) && empty($category['files'])) {
+            echo <<<eof
+    <div class="alert alert-warning">此目录下没有图片和视频哦，复制照片目录或文件到目录里刷新网页即可。</div>
+eof;
         }
 
         //当前目录的描述介绍