public function call($api, $param = '', $method = 'GET', $multi = false)
{
/* 新浪微博调用公共参数 */
$params = ['access_token' => $this->token['access_token']];
$data = $this->http($this->url($api, '.json'), $this->param($params, $param), $method, $multi);
return json_decode($data, true);
}