string(227) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=f1%E5%87%A0%E7%A7%92%E9%92%9F%E5%8A%A0%E9%80%9F%E5%88%B0100 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
f1几秒钟加速到100
