string(244) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%AE%B6%E9%87%8C%E7%9A%84wifi%E9%80%9F%E5%BA%A6%E7%89%B9%E5%88%AB%E6%85%A2 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
家里的wifi速度特别慢
