A_star算法路径规划

2代码学习SSD4实践，可下载SSD4参考

Qt Creator快速入门的教程资料，通过此书可学会基础的QT编程知识(Qt Creator quick tutorial materials, through this book can learn the basic knowledge of QT programming.)

实现机器人运动范围的计算，使用回溯法，简单方便，便于理解(Realizing the calculation of the motion range of the robot)

说明：  EPSON VB6.0 OPOS开发源代码，很好用的(EPSON VB6.0 OPOS development source code, very good use)

一个可以生成标准翼型坐标，并对翼型在不同攻角下进行升力系数及阻力系数计算的软件。-Can generate a standard airfoil coordinates, and the airfoil at different angle of attack carried out under the lift coefficient and drag coefficient calculation software.

gprs read data simple. atmega8 with communication by com port with meastro heritage

用于snmp协议的mib管理软件，使用方便，界面操作简单，易于使用-Mib for snmp protocol management software, easy to use, the interface is simple, easy-to-use

file system filter documentiation windows

数独是一种源自18世纪末瑞士的数学智力拼图游戏。拼图是九宫格（即3格宽×3格高）的正方形状，每一格又细分为一个九宫格。在每一个小九宫格中，分别填上1至9的数字，让整个大九宫格每一列、每一行的数字都不重复。 数独的玩法逻辑简单，数字排列方式千变万化。不少教育者认为数独是锻炼脑筋的好方法。-Sudoku is a kind of Switzerland originated in late 18th century mathematical intelligence jigsaw puzzle. Puzzle is the squares (ie, 3 cells wide × 3 grid H) of square-shaped, each divided into a fine grid squares. Small squares in each of the respective fill in the figures 1-9, so that the whole big squares in each row, each row will not repeat the figures. The logic of playing Sudoku is simple, the arrangement of the ever-changing figures. Many educators think Sudoku is a good way to exercise their brains.

说明：  主要对锁相环的各环节进行仿真，能够实现相位的跟踪(It mainly simulates all links of PLL, and can realize phase tracking)