string(280) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=win7%E5%A6%82%E4%BD%95%E6%89%93%E5%BC%80%E6%9C%8D%E5%8A%A1%E7%AE%A1%E7%90%86%E5%99%A8%E7%9A%84%E5%91%BD%E4%BB%A4 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
win7如何打开服务管理器的命令
