string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B7%98%E5%AE%9D%E4%BB%A3%E8%BF%90%E8%90%A5%E5%93%AA%E5%AE%B6%E5%A5%BD%E7%82%B9%E5%91%A2 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
淘宝代运营哪家好点呢
