string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9F%AF%E6%B4%AA%E6%98%AF%E5%93%AA%E4%B8%AA%E7%BD%91%E6%A0%A1%E7%9A%84 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
柯洪是哪个网校的
