GPS信息获取（LCD1602显示）UTC转换

visual c++与access 数据库实现的学生成绩管理系统(failed to translate)

通过DS1302时钟控制的继电器动作。时钟可调。(By DS1302 clock control relay. Clock adjustable.)

首先通过文件操作，读取文件内容，把字符逐个提取后统计字符频率，建立哈夫曼树和进行哈夫曼编码，当然这是根据ASCII编码来将字符转换为二进制，然后实现前缀编码，然后把编码后的使用二进制流写入相应文件(First through file operations, read the file content, the characters one by one after extracting character frequency statistics, establish a Huffman tree and Huffman encoding, and, of course, this is according to ASCII code to convert characters to the binary, then realize the prefix encoding, and then the encoded using binary stream into the corresponding files )

mfc下封装的一个数据库类，用ado方式调用access数据库(a class of encapsulates the database, call the access database using ado way)

在MFC环境下的多线程编程程序范例，主要是为了示范多线程机制(Example of multithread programming program in MFC environment)

stm32 WM8978芯片的语音播放实例

说明：  LoRa PCB及原理图,供软件编写人员阅读,有助于编程.(LoRa's PcbDOC and SchDOC)

说明：  8*8的矩阵键盘程序，是很好的代码喔。键盘程序采用的是查询的方式来写的喔。(8* 8 matrix keyboard procedures, is a very good code. The keyboard is used for writing.)

C#用GDAL生成shp文件，包含点、线、面、环等类型(C# generate shp with GDAL file that contains point, line, surface, rings and other types)

没什么特别要说的；除了关闭Excel建议用Dispose()。