string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%AD%E7%BA%A7%E6%B3%A8%E5%AE%89%E5%B8%88%E5%92%8C%E5%88%9D%E7%BA%A7%E7%9A%84%E5%8C%BA%E5%88%AB => Failed to connect to 125.88.227.171 port 38114: Connection refused"
中级注安师和初级的区别
