string(291) "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%E7%8E%87%E4%B8%8D%E9%AB%98%2C%E4%B8%BA%E4%BB%80%E4%B9%88%E4%BC%9A%E5%BE%88%E5%8D%A1 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
电脑cpu占用率不高,为什么会很卡
