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说明：  网络安全与密码学技术，用qt作为界面，利用md5算法实现的文件防篡改程序。(Network security and cryptography, using qt as an interface, use the file md5 algorithm tamper program.)

This article (an improved .NET version of my C++ version) describes WebResourceProvider, a simple yet powerful framework for retrieving useful information from public sources on the web, such as: search engines like Google and Altavista online stock quote providers such as Yahoo, CNN and Quicken weather information providers such as Weather.com, AccuWeather and CNN online translation services like Google, Babelfish and FreeTranslation RSS feeds like Yahoo World News, CNN Technology News and Google Business News, etc.

实现钩子，VC++精选编程学习源码，很好的参考资料。(Hook, VC++ select learning programming source code, a good reference.)

用direct show 写的个播放器，可是实现最简单的播放、暂停、停止、截图等。(show with direct write-player, but to achieve the most simple play, pause, stop, and screenshots.)

基于MFC在编辑框中实现文件的打开、查找和关键字搜索定位等功能(Based on MFC it realized the openning and searching of files or texts in your edit box and so on )

使用VC++语言基本实现菜单栏的基本功能(VC++ language using the basic realization of the basic functions of the menu bar)

在DSP5509A的平台下，对信号进行FFT处理，观察信号频域变化。(Under the platform of DSP5509A, the signal is processed by FFT, and the change of the signal frequency domain is observed.)

Chart2d 滚动 多轴 具有多重缩放功能，并能恢复至默认状态(Chart2d scrool multiaxis)

安捷伦X系列频谱仪编程手册，包括N9030A、N9020A、N9010A、N9000A、N9038A等型号(Agilent X-Series Signal Analyzer Programmer s Guide N9030A、N9020A、N9010A、N9000A、N9038A)

地级城市驻地，GIS数据shp格式，完整版(Prefecture level city resident, GIS data SHP format, full version.)