string(286) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BC%80%E6%9C%BAcpu%E5%8D%A0%E7%94%A8%E7%8E%87%E8%BF%87%E9%AB%98%E5%A6%82%E4%BD%95%E8%A7%A3%E5%86%B3%E9%97%AE%E9%A2%98 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
开机cpu占用率过高如何解决问题
