string(311) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BD%93%E5%88%9D%E8%8B%8F%E8%81%94%E6%8C%96%E5%9C%B0%E7%90%83%2C%E6%9C%80%E5%90%8E%E6%8C%96%E5%88%B012262%E7%B1%B3%E5%B0%B1%E5%81%9C%E4%BA%86 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
当初苏联挖地球,最后挖到12262米就停了
