string(285) "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%BA%E7%94%B5%E7%AD%94%E6%A1%88%E4%B8%BA%E4%BB%80%E4%B9%88%E8%BF%98%E4%B8%8D%E5%87%BA%E6%9D%A5 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
一建机电答案为什么还不出来
