/**
* 添加对应
* @param int $user_id 用户的 id
* @param string $nikename 用户昵称
* @param int $gender 性别 1男 2 女
*/
public static function add($user_id, $nikename, $gender)
{
$model = new UserProfile();
$model->gender = $gender;
$model->nikename = $nikename;
$model->user_id = $user_id;
$model->update_time = time();
$model->insert();
return $model;
}