string(232) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%88%9A%E5%BC%80%E6%9C%BAcpu%E5%8D%A0%E7%94%A8%E7%8E%87%E9%AB%98 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
刚开机cpu占用率高
