diff --git a/tencentcloud-cos/class-tencent-cloud-cos.php b/tencentcloud-cos/class-tencent-cloud-cos.php
index 97e9e926accb1681b2d5eacada972e52b8718663..07c32ddcc41c604fdf244c7d20cc6c7af74e1f8c 100644
--- a/tencentcloud-cos/class-tencent-cloud-cos.php
+++ b/tencentcloud-cos/class-tencent-cloud-cos.php
@@ -273,23 +273,33 @@ class TencentWordpressCOS extends TencentWordpressCosBase
         $tcwpcos_options = self::getCosOptons();
         if (isset($tcwpcos_options['opt']['auto_rename_config'])
             && $tcwpcos_options['opt']['auto_rename_config']['auto_rename_switch'] === 'on') {
+            $extension = pathinfo($filename, PATHINFO_EXTENSION);
+            $tmp_filename = pathinfo($filename, PATHINFO_FILENAME);
+            $time = date('YmdHis', current_time('timestamp'));
+            $rand = mt_rand(100, 999);
             if ($tcwpcos_options['opt']['auto_rename_config']['auto_rename_style_choice'] === '0') {
                 // 默认(日期+随机串）
-                return date("YmdHis") . mt_rand(100, 999)
-                    . pathinfo($filename, PATHINFO_EXTENSION);
+                return "{$time}{$rand}.{$extension}";
             } elseif ($tcwpcos_options['opt']['auto_rename_config']['auto_rename_style_choice'] === '1') {
                 // 格式一（日期+文件名+随机串）
-                return date("YmdHis") . pathinfo($filename)['filename'] . mt_rand(100, 999) . "."
-                    . pathinfo($filename, PATHINFO_EXTENSION);
+                return "{$time}{$tmp_filename}{$rand}.{$extension}";
             } elseif ($tcwpcos_options['opt']['auto_rename_config']['auto_rename_style_choice'] === '2') {
                 //  格式二（自定义前缀+日期+文件名称+自定义后缀）
-                return $tcwpcos_options['opt']['auto_rename_config']['auto_rename_customize_prefix'] .
-                    date("YmdHis") . pathinfo($filename)['filename'] . $tcwpcos_options['opt']['auto_rename_config']['auto_rename_customize_postfix']
-                    . "." . pathinfo($filename, PATHINFO_EXTENSION);
+                return "{$tcwpcos_options['opt']['auto_rename_config']['auto_rename_customize_prefix']}"
+                    . "{$time}{$tmp_filename}"
+                    . "{$tcwpcos_options['opt']['auto_rename_config']['auto_rename_customize_postfix']}.{$extension}";
             }
-        } else {
-            return $filename;
         }
+
+        return $filename;
+    }
+
+    /**
+
+    }
+    } else {
+    return $filename;
+    }
     }
 
     /**