string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%AD%A6%E6%B5%B7%E5%B3%B0%E8%AE%B2%E5%BE%97%E6%80%8E%E4%B9%88%E6%A0%B7%E4%BA%8C%E5%BB%BA => Failed to connect to 101.89.117.144 port 38017: Connection refused"
武海峰讲得怎么样二建
