A shopping platform

C#读取dxf中的圆坐标，并且把所有坐标绘图显示出来(C# Reads the Circular Coordinates in DXF)

本程序的功能就是在后台播放音乐，没有多余的界面。"选择目录"里的路径可以自己输入，也可以将音乐文件夹拖到程序的窗口中。"选择歌曲"能选择自己喜欢的歌来听，只要将音乐文件拖到窗口即可，但拖一首歌就要激活本程序的窗口，再按一下回车，才可以选择第二首歌。这里比较麻烦，我会努力解决问题。最重要一点就是，"选择歌曲"里，歌曲名称不能有空格，技术问题，请多多包含。-This procedure of its function is to play music in the background, there is no extra interface.

ACM刷题网站部分题目答案，有的是自己写的，有的是百度的，都测试过了(Answers to Some Questions on ACM Title Brushing Website)

说明：  GUI和FIR滤波器和IIR滤波器的高通、低通、带通滤波器的设计，以及频率响应(GUI and FIR filter and IIR filter high pass, low pass, band-pass filter design, as well as frequency response)

稠油热采直井吞吐净现值计算，考虑汇率以及所得税，原理是动态经济评价法，需要输入每年的产油量和注气量。-Calculation of heavy oil thermal recovery after considering the exchange rate and the income tax net present value of the vertical well stimulation, the principle is a dynamic economic evaluation method, need to enter the annual oil production and gas injection.

说明：  已知和未知CSI时的信道容量比较matlab代码(Comparison of channel capacity with known and unknown CSI in MATLAB code)

Shape 坐标转换程序 Shape 坐标转换程序-shape Projection demo

运用jdk，tomcat6.0.14,jdbc,sql2000开发的数据库系统-Use jdk, tomcat6.0.14, jdbc, sql2000 database system developed

切线刚度法的abaqusFortran子程序实现(ABAQUS Fortran subroutine implementation of tangent stiffness method)

说明：  luac解密工具 方便快捷的解密luac文件(Luac decryption tool to decrypt luac files conveniently and quickly)