string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%8D%E8%83%BD%E5%BF%AB%E9%80%9F%E5%85%A5%E7%9D%A1%E7%9A%84%E5%8E%9F%E5%9B%A0 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
不能快速入睡的原因
