著名的15谜游戏（15-puzzle ）的Tcl/Tk版本，现在它可以有 4x4, 5x5 或6x6 的格子，所以更加有趣，改变图片也更加容易。 -mystery of the famous 15 games (15-puzzle) Tcl / Tk editions, it could 4x4, 5x5 or 6x6 lattice, the more interesting and change the picture much easier.

在网络仿真NS中对延时分析，丢包率分析，延时抖动分析，网络吞吐量分析等给出了可行性算法，直接就能用，对学NS2的人很有用的-Network simulation in NS for latency analysis, analysis of packet loss rate, delay jitter analysis, network throughput analysis give a feasibility algorithm, can be used directly on people