File1798

用C#開發的YouTube Downloader,只要貼上YouTube URL,就可以把Download YouTube影片(C# development of YouTube Downloader, as long as the paste YouTube URL, you can put Download YouTube Videos)

该文件是nxp lpc54114 adc dma 配置程序(nxp lpc54114 ADC driver programer)

说明：  点对点的聊天工具，公司不让QQ,SKYPE，就动手写了个超小巧的聊天工具(Peer-to-peer chat tool company from QQ, SKYPE, on hand to write a super-compact chat tools)

DES简单加密算法客户端服务器端实现，通过des算法实现发送信息的加解密(The DES simple encryption algorithm is implemented on the client side server side, and the encryption and decryption of the sending information are realized through the DES algorithm)

一本关于C和C++的书首先请做附录B的C++/C试题（不要看答案），考查自己的编程质量究竟如何。然后参照答案严格打分。 (A book about the of C and C++ the first to do Appendix B C++/C questions (do not look at the answers), examines how quality of their programming. Then reference the answer stringent scoring.)

stm8低功耗单片机，设置IO进行串口工作模拟，值得一看(This is a C++ compiled calculator source code, to achieve advanced computing functions, the interface is a bit rough, you can see the idea, thank you.)

XP风格工具栏，漂亮的界面设计，可以编译运行(XP STYLE TOOL BAR)

qt中提供了QGphicsView，QGraphicsScene，QGraphicsItem，QGraphicsPixmapItem是QGraphicsItem的子类 分辨创建它们的实例：view，scene，item，然后通过各自的方法scene->addItem(item);view->setScene(scene);就可以达到类似下图的效果，想要进一步定制，则要继承QGraphicsItem或QGraphicsPixmapItem，然后重写paint()、boundingRect()等方法，此外如果还想要获取鼠标事件，重写mousePressEvent等事件就好了，注意，一旦重写了mousePressEvent方法，就以为了qt不会再自动处理item的任何press事件了，可以在你重写的mousePressEvent方法中最后添加QGraphicsItem::mousePressEvent(event);解决这个问题，就是说你获取到了鼠标事件，但是依然让qt处理这个鼠标事件。(QGphics View, QGraphics Scene, QGraphics Item and QGraphics PixmapItem are provided in qt. They are subclasses of QGraphics Item. Resolve the instances of creating them: view, scene, item, and then use their respective methods scene - > addItem (item); view - > setScene (scene); you can achieve the effect similar to the figure below. If you want to further customize, you need to inherit QGraphics Item or QGraphics Pixmap Item, and then rewrite paint (), boundingRect () and other methods, and if you want to do so. If you want to get mouse events, rewrite events like mousePressEvent. Note that once you rewrite the mousePressEvent method, you think that QT will no longer automatically handle any press events of item. You can finally add QGraphics Item:: mousePressEvent (event) to your rewritten mousePressEvent method to solve this problem. That is, you get the mouse event, but still let QT handle the mouse event.)

Windows屏幕放大镜功能，开小窗口，放大显示鼠标所在处屏幕详细信息(C# Windows screen magnifier)

c8051f320关于键盘的一个源程序实例，希望有用，看不太懂(c8051f320 on the keyboard of a source example and I hope useful, I do not understand)