':return: åŸ®åéŸæ¥å°åïŒåŠæ²¡æåè¿å âunknownâ
:rtype: str'

@property
@check_soup('_weibo_url')
def weibo_url(self):

    if (self.url is None):
        return None
    else:
        tmp = self.soup.find('a', class_='zm-profile-header-user-weibo')
        return (tmp['href'] if (tmp is not None) else 'unknown')
