雨宾的博客

可以直接ping端口，返回端口的响应速度 D:\>tcping -d -t www.163.com 80 ** Pinging continuously. Press control-c to stop ** Probing 113.200.235.30:80/tcp - Port is open - time=19ms Probing 113.200.235.30:80/tcp - Port is open - time=14ms Probing 113.200.235.30:80/tcp - Port is open - time=12ms ^C D:\>