public function doSiteChangePassword()
{
Validate::make([['password', 'required', '密码不能为空'], ['password', 'confirm:password2', '两次密码不一致']]);
$member = new Member();
$member->uid = Request::post('uid');
$member->password = Request::post('password');
$member->setPasswordAndSecurity();
$member->save();
message('密码更新成功', 'back', 'success');
}
