string(313) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BB%80%E4%B9%88%E6%98%AF%E9%87%8D%E5%A4%8D%E9%93%BA%E8%B4%A7%2C%E4%BB%A5%E5%8F%8A%E9%87%8D%E5%A4%8D%E9%93%BA%E8%B4%A7%E7%9A%84%E7%B1%BB%E5%9E%8B => Failed to connect to 14.18.117.71 port 38220: Connection refused"
什么是重复铺货,以及重复铺货的类型
