string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E6%9C%89%E6%A0%87%E5%87%86%E7%AD%94%E6%A1%88%E5%90%97 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
一建有标准答案吗
