刚生成的 access_token 去请求 https://api.weixin.qq.com/cv/ocr/idcard?img_url=ENCODE_URL&access_token=ACCESS_TOCKEN
img_url是http开图的  返回 access_token 无效{"errcode":40001,"errmsg":"invalid credential, access_token is invalid or not latest rid: 5f9d2731-2414c4ac-0e28a1d2"}