我一开始学习C语言时写的很小的程序，关于大小写转换，文件很小，功能也很简单，适合新手参考。...

一本介绍javascript的好书，纯英文，高手请进。-javascript a briefing books, pure English, experts invited to play.

ArcGIS 地理信息系统空间分析实验教程，第四章，空间数据的转换与处理-ArcGIS Geographic Information System spatial analysis Experimental Course, the fourth chapter, the spatial data conversion and processing

zemax源码： This DLL models a standard ZEMAX surface type, either plane, sphere, or conic The surface also demonstrates a user-defined apodization filter The filter is defined as part of the real ray trace, case 5 The filter can be used at the stop to produce x-y Gaussian apodization similar to the Gaussian pupil apodization in ZEMAX but separate in x and y. The amplitude apodization is of the form EXP[-(Gx(x/R)^2 + Gy(y/R)^2)] The transmission is of the form EXP[-2(Gx(x/R)^2 + Gy(y/R)^2)] where x^2 + y^2 = r^2 R = semi-diameter The tranmitted intensity is maximum in the center. T is set to 0 if semi-diameter < 1e-10 to avoid division by zero. -ZEMAX source: This DLL models a standard ZEMAX surface type, either plane, sphere, or conic The surface also demonstrates a user-defined apodization filter The filter is defined as part of the real ray trace, case 5 The filter can be used at the stop to produce xy Gaussian apodization similar to the Gaussian pupi

csr 蓝牙bc３的资料，给一些有需要的刚入门的朋友．-csr Bluetooth bc3 information, there is need to give some of the friends just getting started.

GNU make的编写详解，对编写makefile很有帮助。-GNU make the preparation of detailed, helpful to the preparation of makefile.

关于C++编程方向的一些经验，比如服务器开发、架构搭建等，对于有经验的人员比较实用。无经验者会看不懂的。-direction on the C programming experience, such as server development, architecture and other structures, experienced personnel practical. No experience will do not understand.

高效STL编程，STL编程的经典之作，相信GP编程高手一定知道它。-efficient programming, STL programming classics, GP programming experts believe will certainly know it.

这是统计计算的一些原数据，我自己交作业所用的作业 现在共享了， 大家期末好好考试，  谢谢， 加油加油， 统计的，数学的都可以用，或者不是专业的数学系也可以用，作为练习等等 都是很好的

这是一本很好看的电子书籍，很有用的。学机械的同学注意了。-This is a very good e-books, very useful. The students studied mechanical attention.

介绍了SD卡的规范等,适合想学习SD卡读写的朋友.-introduced the SD Card standards, etc., suitable for learning to SD Card Reader friends.