string(234) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B0%8F%E5%AD%A6%E8%80%83%E8%BF%87pet%E5%BE%88%E7%89%9B%E5%90%97 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
小学考过pet很牛吗
