string(252) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%88%B6%E4%BD%9C%E4%B8%80%E4%B8%AA%E7%BD%91%E4%B8%8A%E4%B9%A6%E5%BA%97%E7%9A%84web => Failed to connect to 101.89.166.210 port 38089: Connection refused"
制作一个网上书店的web
