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%E6%97%B6%E9%AB%98%E6%97%B6%E4%BD%8E => Failed to connect to 101.89.117.144 port 38005: Connection refused"
电脑cpu占用时高时低
