ELGamal椭圆曲线密码

用C程序编写，可以读取SAC格式的地震波形数据。头文件包含了sac格式的头段。在window和LINUX环境下都可运行。(With C programming, you can read the seismic waveform data SAC format. Header file contains the header sac format. Window and can be run under LINUX environment.)

一类分数阶常微分方程初值问题的预校算法problem of pre-school algorithm(A class of fractional ordinary differential equations initial value problem of pre-school algorithm)

假定一维整型数组a[n]中的每个元素值均在[0,200]区间内,分别统计出落在[0,20],[20,50],[50,80],[80,130],[130,200]等各区间内的元素个数；(Assume a one-dimensional integer array a [n] each element of the values ​ ​ are in the range [0,200] interval, respectively, the statistics fall [0,20], [20, 50], [50, 80], [, 130] , element number [130,200], etc. of each interval )

1、单向通信 向甲方连续不断地发送变量a的值，未按键，a=0x0f，按键后根据按键确定a值；并将a的值取反从P0口输出，控制D0、D1、D2、D3相应点亮。乙方接收到数据并偶校验正确后，将接收数据取反从P0口输出，控制D0、D1、D2、D3相应点亮。 2、双向通信 甲方连续不断地发送变量a的值，未按键，a=0x0f，按键后根据按键确定a值；乙方未按键不发送，按键后将乙方按键得到的a*16发送；甲乙双方都将发送数据与接收数据相或后再取反，从P0口输出控制D0—D7相应点亮。 3、间隔发送 未按键，甲方不发送数据，按键后甲方每隔50ms连续发送4个字节：0xff、a、a、a。 乙方只在收到甲方数据0xff后的3个数据并验证相同时，才将接收数据*16发送。 甲乙双方都将发送数据与接收数据相或后，从P0口输出控制D0—D7相应点亮。(1. One-way communication The value of variable a is continuously sent to Party A without key, a = 0x0f. After the key is pressed, the value of a is determined according to the key; and the value of a is output from P0 port to control the corresponding lighting of D0, D1, D2 and D3. After receiving the data and checking it correctly, Party B will output the received data from P0 port and control D0, D1, D2 and D3 to light up accordingly. 2. Two-way communication Party A continuously sends the value of variable a without key, a = 0x0f, and determines a value according to the key after the key; Party B does not send the key without key, and sends the a*16 obtained by the key after the key is pressed; Both parties will send the data to or from the receiving data, and then retrieve the data and control D0-D7 from the P0 port to light up accordingly. 3. Interval Sending Without keys, Party A does not send data. After keys, Party A sends 4 bytes continuously every 50 ms: 0xff, a, a.)

基于神经网络的文字识别系统，里面有详细的注释-Based on neural network character recognition system, there are detailed notes

linphone-3.11.1源代码包 这个是在官网下载的 先上传上来以防万一

匿名飞控领航者基于stm32f407制作的飞控 用于控制四旋翼无人机(Anonymous Flight Control Pilot Based on STm32f407 Four-Rotor Unmanned Aerial Vehicle for Control)

说明：  有c语言编写的推箱子小游戏，非常简单 新手可以看看(There are C language programming push box games, very simple novice can see)

本书运用大量新颖，实用的实例，让学生可以在不断地实践操作中学习，掌握C#的具体应用方法和编程技巧。即可以作为C#初学者入门的自然读物，也可以作为程序员的实例练习集。特别对与C#初学者,具有很高的借鉴价值。

里面含有一些STC12系列单片机常用的硬件驱动程序和片上资源驱动程序。工作在11.0592MHZ可以直接使用。如12864的串口方式驱动，1602驱动，18B20驱动，DHT11驱动，STC片上EEPROM/ADC/PWM等驱动程序，还包括一些经过本人用示波器侧过的STC12系列单片机在11.0592MHZ下的软件延时子函数。这些东西对你平时开发会大有帮助。(failed to translate)