Obtain_filenames_in_dir

说明：  基于Multisim12设计的数字钟，通过四个按键控制四个数码管显示时间，包含万年历，闹钟功能(Digital Clock Design Based on Multisim12)

图片几何变换，基于C语言实现，打开一幅位图，实现几何变换，包括X/Y坐标裁切、裁切、透明化、旋转、放大等。命令行编译过程如下： 　　vcvars32 　　rc bmp.rc 　　cl geotrans.c bmp.res user32.lib gdi32.lib 　　注意事项： 　　运行时，文件c: est.bmp必须存在

说明：  学习前端安全必备，php程序员可以借鉴学习(Learning Front End Safety Necessary)

ADDA器件一览表，基本上所有的 AD DA参数都用-AD DA device list, basically all of the AD DA parameters are used

缓冲区数据输入与输出c语言源程序-buffer data input and output source language c

实现摄影测量中空间后方交会的问题，用以求得像片的内外方位元素-To achieve space resection in photogrammetry issues photograph to obtain the internal and external orientation elements

发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10-5，准确度达到3×10-5，由变容二极管V149和集成压控振荡器芯片MC1648实现对载波的调频调制；末级功放选用三极管2SC1970，使其工作在丙类放大状态，提高了放大器的效率，输出功率达到设计要求。-Part of the launch phase-locked loop frequency synthesizer using technology, MC145152 and MC12022 PLL chips to lock in the exact carrier frequency 35MHz, the output carrier to achieve the stability of 4 × 10-5, reaching the accuracy of 3 × 10-5 by the varactor diode V149 and integration to achieve MC1648 chip VCO FM modulation on the carrier selection transistor amplifier at the end of class 2SC1970, to work in the C state to enlarge and improve the efficiency of the amplifier output power to meet the design requirements.

俄罗斯方块，能实现单人和多人的模式，但还有个漏洞，希望大家指出-Rubik"s cube, able to single and multiplayer mode, but there are flaws, we hope that

6. Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not. Testing is executing a system in order to identify any gaps, errors, or missing requirements in contrary to the actual requirements.

一首VHDL自动音乐发生器程序，在Altera EDA软件下测试通过-VHDL an automatic music generator procedures, Altera EDA software under test