string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%8E%E4%B8%96%E9%9A%94%E7%BB%9D%E7%9A%84%E6%84%9F%E8%A7%89 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
与世隔绝的感觉
