一个很小的聊天程序，用java编写的，但它是非常强大的功能

datagrid打印 可以实现在当前控件的打印功能-datagrid printing can be achieved in the current control of the printing function

万岁测试小程序,自己算算,第一行填上你的年月日,点一下按钮就可以了-testing procedures, calculate for themselves, the first line to fill in your date, the point button on the can

一个用C 语言编写计算器程序，绝对的正确，我自己调试过的，能成功-a C language calculator program that is absolutely right, I own debugging off and success

Postman 帮助你更加高效地使用 API。一个开发人员为项目创建 API 时，他查看了一些工具，没有发现特别适用的，从而产生了对 Postman 的需求。最初添加的主要功能是发送请求和集合的历史。

一个C++控制台的井字过三关小游戏,是大家学习的好材料-Tic-Tac-Toe Plays the game of tic-tac-toe against a human opponent Uses pointers instead of refernces for function parameters

装机常用的小软件，不一定最好但一定是最好用的，赶快下吧-Installed capacity of commonly used small software, not necessarily the best but definitely the best use, as soon as possible, are you

DM642支持4个串口的驱动代码，自己写的，经过长期测试-DM642 support four serial driver code, wrote it myself, after a long-term test

/*本人先后编了两次，第二次进行了改进。改进的思想主要是注意到棋盘上每一点的下一可到达点的个数 （下称为权值）不同，对于可到达点较少（权值小）的点应该先跳上去，这样后来跳的点可跳的方向就比 较多，回溯的现象就比较少，这样就可以大幅度提高速度*/-/* I have compiled twice, the second time for improvements. Improved thinking is that every point on the chessboard of the next point can be reached by the number (hereinafter referred to as the right value), For less accessible spots (small weights) should be the first point and jumped out of the way and then jump to the point of jumping on the direction of more, Looking back on the phenomenon of relatively small, we can significantly improve the speed* /

TOYFDTD1 is a stripped-down minimalist, 3D FDTD code demonstrating the basic tasks in implementing a simple 3D FDTD simulation. An idealized rectangular waveguide is modeled by treating the interior of the mesh as free space and enforcing PEC conditions on the faces of the mesh. A simplified plane wave source is inserted at one end. First released 12 April 1999. Version 1.03 released 2 December 1999.

一些常用的PSO算法程序，包括基本的PSO，线性变化PSO，压缩因子PSO，随机权重PSO等等，可以方便大家学习