string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%8E%8B%E6%AC%A3%E4%BA%8C%E5%BB%BA%E6%B3%95%E8%A7%84%E8%AE%B2%E7%9A%84%E5%92%8B%E6%A0%B7 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
王欣二建法规讲的咋样
