string(328) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%A7%E4%BB%B7%E6%AF%94%E9%AB%98%E7%9A%84%E6%89%8B%E6%9C%BA%E6%8E%92%E8%A1%8C%E6%A6%9C%E5%89%8D%E5%8D%81%E5%90%8D%E4%B8%A4%E5%8D%83%E5%88%B0%E4%B8%89%E5%8D%83 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
性价比高的手机排行榜前十名两千到三千
