string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%81%A5%E5%BA%B7%E8%AF%81%E7%9A%84%E7%94%B5%E5%AD%90%E7%89%88%E7%94%9F%E6%88%90 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
健康证的电子版生成
