string(276) "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%E5%92%8C%E6%B2%88%E9%98%B3%E5%93%AA%E4%B8%AA%E5%9F%8E%E5%B8%82%E7%B9%81%E5%8D%8E%E4%BA%9B => Failed to connect to 101.89.159.206 port 38187: Connection refused"
大连和沈阳哪个城市繁华些
