string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA%E5%BB%BA%E7%AD%91%E8%B0%81%E8%AE%B2%E7%9A%84%E6%AF%94%E8%BE%83%E5%85%A8%E9%9D%A2 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
二建建筑谁讲的比较全面
