string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%AD%E7%BA%A7%E6%99%A8%E9%98%B3%E7%AC%94%E8%AE%B0%E6%9C%89%E7%94%A8%E5%90%97 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
中级晨阳笔记有用吗
