WPF连接数据库实例

图形学中的透视投影算法 在屏幕中心绘制立方体的透视投影 可以绘制一点透视图 二点透视图 三点透视图(Graphics in the perspective projection algorithm for drawing a cube in the center of the screen you can draw a little perspective projection perspective two point perspective three-point perspective)

如题，共阴数码管，这是个简单计时器

最近在学用API写windows程序,经过半天的努力写出了一个汉诺塔演示程序.程序短小精悍,能完整地完成盘子的移动过程.(Recent study using API to write windows procedure, after the efforts of a half-day Tower of Hanoi to write a demo program. Dapper procedures can be completed full course of plate movement.)

该小程序为哈弗曼编码系统，带有一个小界面，主要执行的功能是对输入的数据进行编码，译码，构造并打印哈夫曼树。并且将输入的数据进行保存。(The applet is Felicity Huffman coding system, with a small interface, main function is performed on the input data encoding, decoding, construct and print a Huffman tree. Data entered and saved. )

用于实现网页建设和基本的标签实现，其硬件核心主要源于嵌入式系统开发，在此基础上完善了相应的系统界面功能。

数局结构代码，清华版，大量算法在其中，演示准确-Number of Board structure code, Tsinghua version, a large number of algorithms in which to demonstrate the accuracy

ch372数据测试程序,可以长时间测试准确传输数据-ch372 test program

飞思卡尔单片机锁相环程序，详细说明了锁相环的配置步骤以及计算方法(Freescale MCU PLL procedures, a detailed description of the PLL configuration steps and calculation methods)

OMAP5912 UART的测试程序 包括头文件 源文件等。(OMAP5912 UART program test)

The (a) section of Figure 1 illustrates the Line Echo Canceller (LEC) residing in the access network where echoes occur. Other voice processing modules, such as Automatic Level Control (ALC) and Noise Reduction (NR), are shown merely for illustration purposes. On the terminal side, both acoustic and electrical echo can occur. If the voice terminal is a speaker telephone set with an open acoustical path from the speaker to the microphone, the effect of acoustical echo is combined with the effect of the network echo. Because there is only a miniscule delay between the electrical signal and its echo, the speaker/listener is exposed to an effect known as side tone. Typically, instead of mounting a LEC at the terminal, side tone circuitry is placed to control the amount of the returned energy. The (b) section of Figure 1 shows examples of echo canceller signals representing the following: