string(241) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%B5%E8%84%91cpu%E5%BC%80%E6%9C%BA%E5%B0%B1%E5%8D%A0%E7%94%A8%E9%AB%98 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
电脑cpu开机就占用高
