* [ ] 獲取上傳文件 ``` Request::file($Key = null, $Default = null); ``` Key(string)：字段名稱 Default (null|string....)：默認內容 ***** 獲取整個上傳文件數組 ``` Request::file(); ``` 返回的文件格式類似: ``` array ( 'avatar' => array ( 'name' => '123.jpg', 'tmp_name' => '/tmp/workerman.upload.9hjR4w', 'size' => 1196127, 'error' => 0, 'type' => 'application/octet-stream', ), 'anotherfile' => array ( 'name' => '456.txt', 'tmp_name' => '/tmp/workerman.upload.9sirSws', 'size' => 490, 'error' => 0, 'type' => 'text/plain', ) ) ``` 其中： * name為文件名字 * tmp\_name為磁盤臨時文件位置 * size為文件大小 * error為[錯誤碼](https://www.php.net/manual/zh/features.file-upload.errors.php) * type為文件mine類型。 ***** 獲取特定上傳文件 ``` Request::file('avatar'); ``` 返回類似 ``` array ( 'name' => '123.jpg', 'tmp_name' => '/tmp/workerman.upload.9hjR4w', 'size' => 1196127, 'error' => 0, 'type' => 'application/octet-stream', ) ```