ping测试

做了詞法分析器，不知道怎樣，希望有人給我提提意見(Done a lexical analyzer, I do not know how, I hope someone is going to give me make a suggestion)

说明：  关于 Visual studio的书籍，实现了很多功能，很有借鉴意义。值得一看。适合学习。(Books about Visual studio, to achieve a lot of features, and a useful one. Worth a visit. Suitable for learning.)

是asp.netC#的很好的例子。我在你们网站上下了某些软件下来，无法解压。问题-It is a excellent ASP.NET example using C#.I have download some softwares in your WebSite,but they can t get decompression,question!

基于C环境下的最小二乘法的计算编程算法相当相当实用。(C based on the circumstances of the least squares algorithm for calculating the programming very well.)

视觉slam十四讲，程序资料：g2o优化、cere拟合、特征点提取与匹配、点云拼接、opencv图像读取(Visual slam 14, program data: g2o optimization, cere fitting, feature point extraction and matching, point cloud mosaic, OpenCV image reading)

公交的定票系统，可以选站名，路线还有其他一些功能(ABOUT BUS)

在局域网中，管理员常常需要将某条信息发送给一组用户。如果使用一对一的发送方法，虽然是可行的，但是过于麻烦，也常会出现漏发、错发。为了更有效的解决这种组通信问题，出现了一种多播技术（也常称为组播通信），它是基于IP层的通信技术(In a LAN, administrators often need to send a certain message to a group of users. If one to one transmission method is used, it is feasible, but it is too troublesome, and often there will be missed and wrong hair. In order to solve this kind of communication problem more effectively, there is a multicast technology (often called multicast communication). It is a communication technology based on the IP layer.)

EAT for sim800, to compile n debug

PCB设计工具，PROTEL 转 POWERPCB工具，方便的PCB转换工具，很实用！(PCB design tools, PROTEL to POWERPCB tools, PCB convenient conversion tool, very useful!)

矩阵奇异值分解算法的C语言实现，已附有测试矩阵，可以实现低维度的奇异值分解算法，输入NXN矩阵，输出奇异值矩阵、左酉矩阵和右酉矩阵。源码比较简单，适合刚接触矩阵算法的初学者。