string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8B%BC%E5%A4%9A%E5%A4%9A%E5%BA%97%E9%93%BA%E5%B1%82%E7%BA%A7%E6%80%8E%E4%B9%88%E8%AE%A1%E7%AE%97%E7%9A%84 => Failed to connect to 101.89.159.206 port 38075: Connection refused"
拼多多店铺层级怎么计算的
