string(238) "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%E6%8A%A5%E9%94%99%E5%A6%82%E4%BD%95%E4%BF%AE%E6%94%B9 => Failed to connect to 218.78.59.96 port 38043: Connection refused"
二建报错如何修改
