实现输出某年某月某天的后N天是哪一年哪一月，哪一天

c语言编写的源程序，相信对于想利用硬盘来制作自己硬盘mp3的朋友有帮助(c language of the source, and I believe would like to use to produce their hard disk mp3 help of a friend)

CP210x_VCP_Win7,USB转串口驱动协议CP210X都可使用(CP210x_VCP_Win7, USB serial driver can be used protocol CP210X)

STM32的温度、湿度和压力-带传感器HTS221和LPS25

说明：  文本转换，按行读取txt经纬度文件，转换成geojson文件(Text conversion, read TXT longitude and latitude files by line, and convert them into geojson files)

指纹识别实例

iec61850客户端源代码，该源代码基于sisco的mms-lite编写，对其进行二次封装，大大简化了函数调用。(IEC61850 client source code, the source code based on the mms-lite Sisco write, for its two package, greatly simplifying the function call.)

一个APP，两端同时运行可以收发消息和传输文件

说明：  jrtplib库如何使用，使我自己总结的，希望有用(description: introduce how to use jrtplib,I summarized it myself,hope to be helpful:))

提出了几个有关点模型的表面几何建模和绘制方面的新算法，用于处理这些广泛使用和日益复杂的三维采样点几何模型。 (Raised a few points on the surface of the model geometry modeling and rendering aspects of the new algorithm for dealing with these widely used and increasingly complex three-dimensional geometric model of the sampling point.)

蓄电池放电模型,经过调试可以使用，希望对大家有帮助。(Battery discharge model, after debugging can be used, I hope to help you.)