':param user_id: çšæ· ID ã å°±æ¯äœ æ¶å°ç `Message` ç source
:param lang: è¿ååœå®¶å°åºè¯­èšçæ¬ïŒzh_CN ç®äœïŒzh_TW ç¹äœïŒen è±è¯­
:return: è¿åç JSON æ°æ®å'

def get_user_info(self, user_id, lang='zh_CN'):

    return self.get(url='https://api.weixin.qq.com/cgi-bin/user/info', params={'access_token': self.token, 'openid': user_id, 'lang': lang})
