string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%AE%89%E5%B8%88%E5%8F%AF%E4%BB%A5%E8%AF%84%E4%B8%AD%E7%BA%A7%E8%81%8C%E7%A7%B0%E5%98%9B => Failed to connect to 61.171.74.35 port 38027: Connection refused"
注安师可以评中级职称嘛
