string(230) "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%E9%A2%98%E7%9B%AE%E4%BB%80%E4%B9%88%E6%A0%B7 => Failed to connect to 101.91.112.32 port 38195: Connection refused"
一建题目什么样
