string(261) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=618%E5%92%8C%E5%8F%8C11%E5%93%AA%E4%B8%AA%E4%BC%98%E6%83%A0%E5%8A%9B%E5%BA%A6%E5%A4%A7%E4%BA%9B => Failed to connect to 14.18.117.71 port 38069: Connection refused"
618和双11哪个优惠力度大些
