string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9B%9B%E8%89%B2%E7%AC%94%E8%AE%B0%E5%A5%BD%E4%B8%8D%E5%A5%BD => Failed to connect to 125.88.227.171 port 38114: Connection refused"
四色笔记好不好
