string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A4%A7%E8%BF%9E%E8%B7%9F%E6%B2%88%E9%98%B3%E5%93%AA%E4%B8%AA%E5%8F%91%E8%BE%BE%E4%BA%9B => Failed to connect to 101.89.159.206 port 38100: Connection refused"
大连跟沈阳哪个发达些
