string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B0%8F%E7%B1%B3%E5%B9%B3%E6%9D%BF%E7%94%B5%E8%84%91%E5%80%BC%E5%BE%97%E4%B9%B0%E5%90%97 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
小米平板电脑值得买吗
