string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%81%9A%E4%BA%BA%E8%A6%81%E8%84%B8%E7%9A%AE%E5%8E%9A%E5%88%AB%E4%B8%8D%E5%A5%BD%E6%84%8F%E6%80%9D => Failed to connect to 61.171.74.35 port 38027: Connection refused"
做人要脸皮厚别不好意思
