string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%9C%82%E9%B8%9F%E4%BC%97%E5%8C%85%E8%B5%9A%E9%92%B1%E8%BF%98%E6%98%AF%E7%BE%8E%E5%9B%A2%E4%BC%97%E5%8C%85 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
蜂鸟众包赚钱还是美团众包
