string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BE%AF%E6%9D%8F%E5%88%A9%E6%9C%BA%E7%94%B5%E8%AE%B2%E5%BE%97%E6%80%8E%E4%B9%88%E6%A0%B7 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
侯杏利机电讲得怎么样
