string(285) "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%E5%B0%8F%E4%BA%8C%E6%98%AF%E4%BA%BA%E5%B7%A5%E8%BF%98%E6%98%AF%E6%9C%BA%E5%99%A8%E4%BA%BA%E5%95%8A => Failed to connect to 101.89.117.144 port 38056: Connection refused"
淘宝小二是人工还是机器人啊
