attack

带全国县级统计数据的shp矢量地图，包括人口、GDP、从业人员等经济数据(With statistics at the county level of the country s SHP vector maps, such as population, GDP, personnel of course of economic data)

基于51单片机的步进电机的控制设计 一圈360度,需要20个脉 冲完成. 3,步进电机具有瞬间启动和急速停止的优越特性. 4,改变脉冲的顺序,可以方便的改变转动的方向(51 step motor control designs around 360 degrees, requires 20 pulses to complete. 3, stepper motor with instant start and stop the rapid superior characteristics based on 4, change the order of the pulse, you can easily change the direction of rotation)

说明：  在CCS环境下，实现ram到ram的直接内存读功能(DMA)(In the CCS environment, the direct memory read function (DMA) from RAM to ram is realized.)

初学者入门适合看的代码,很简单，就是一个界面编辑(beginning learning vc code)

说明：  DirectX声音编程及管理，Visual+C++音频视频处理技术及工程实践本光盘实例源文件第4张(DirectX Sound Demo and DirectX Sound Manager)

COM组件的聚合，其中有两个组件，A为内部组件，B为外部组件(COM components aggregate)

实现本地程序从远程服务器下载文件。保存到本地。同时，具备断点续传的功能。可以在下载一部分的情况下，再次下载从断点处继续下载。(Implement a local program to download files a remote server. Saved locally. At the same time, with the functions of HTTP. You can download a part in the case, once again download continue downloading the breakpoint.)

VC6.0环境下实现的数字显示时间和日期的一个数字钟表，主要运用了C++的继承。(VC6.0 environment figures show the time and date of a digital watch, mainly use the C++ succession.)

电梯仿真系统的实现，包含源码和文档。(Elevator simulation system, including source code and documents.)

说明：  td_scdma的完整程序，包括发送和接受两部分，涉及信道编解码，交织，扩频等(td_scdma complete process, including sending and receiving two parts, related to the channel encoding and decoding, interleaving, spreading, etc.)