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%91%E6%97%A0%E6%95%85cpu%E5%8D%A0%E7%94%A8%E7%8E%87%E9%AB%98 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
电脑无故cpu占用率高
