public function save(&$file, $replace = true)
{
$file['name'] = $file['savepath'] . $file['savename'];
$key = str_replace('/', '_', $file['name']);
$upfile = ['name' => 'file', 'fileName' => $key, 'fileBody' => file_get_contents($file['tmp_name'])];
$config = [];
$result = $this->qiniu->upload($config, $upfile);
$url = $this->qiniu->downlink($key);
$file['url'] = $url;
return false === $result ? false : true;
}