string(348) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%AC%E4%B8%9C%E5%95%86%E5%9F%8E%E7%9A%84%E6%8E%A8%E5%B9%BF%E6%8E%AA%E6%96%BD%E7%B1%BB%E5%9E%8B%E4%B8%8E%E5%86%85%E5%AE%B9%E6%80%8E%E4%B9%88%E5%86%99%E5%A5%BD%E4%B8%80%E7%82%B9 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
京东商城的推广措施类型与内容怎么写好一点
