string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%88%90%E9%83%BD%E8%B7%9F%E9%87%8D%E5%BA%86%E5%8C%BA%E5%88%AB => Failed to connect to 101.89.117.144 port 38017: Connection refused"
成都跟重庆区别
