string(234) "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%E5%8D%A1cmd%E6%B8%85%E7%90%86%E5%91%BD%E4%BB%A4 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
电脑卡cmd清理命令
