string(243) "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%8D%A0%E7%94%A8%E8%8E%AB%E5%90%8D%E5%BE%88%E9%AB%98 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
电脑cpu占用莫名很高
