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实现对Win7x64上的指定进程号的进程的驱动保护，使其不被任务管理器结束掉(To achieve the specified process ID Win7x64 processes drive protection, so as not to end off by the task manager)

制作类似心电图波形 程序(ECG waveform program)

sample for lpc2368 lcd uart and wifi esp8266

博弈树，是数据库课程中非常重要的一个编程程序。里面的编程思想非常适合初学者(Game tree, which is the database course a very important programming procedures. Inside the programming ideas for beginners)

说明：  引用中间变量，实现两个数的交换，从而实现矩阵的转置，并输出初始矩阵和转置后的矩阵。(The intermediate variable is used to realize the exchange of two numbers, so as to realize the transposition of the matrix, and output the initial matrix and the transposed matrix.)

说明：  C#串口助手源代码，有winform的，也有WPF的，一共六个打包下载。代码来自网络。(C# serial assistant source code, there are WinForm, there are also WPF, a total of six packages to download. The code comes from the network.)

leetcode所有题的题解，c 语言版，代码非常经典

its a useful document about USB2 HOST

DSM501A灰尘传感器+51单片机C语言程序完整版+LED数码显示PWM低脉冲率(DSM501A C programer)

WPF动画演示，实现冰雪效果。在桌面上会出现一个透明窗体，窗体内使用动画技术显示下雪情景。(WPF animation demo, to achieve the effect of snow and ice.)