C:>ping www.qq.com-l 100Pinging www.qq.com [222.73.78.181] with 100 bytes of data:Reply from 222.73.78.181: bytes=100 time=33ms TTL=58Reply from 222.73.78.181: bytes=100 time=32ms TTL=58Reply from 222.73.78.181: bytes=100 time=33ms TTL=58Reply from 222.73.78.181: bytes=100 time=32ms TTL=58Ping statistics for 222.73.78.181:    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:    Minimum = 32ms, Maximum = 33ms, Average = 32ms 看见 -l  这个参数没有。

后面跟的数字就是包大小...。