c语言写的绘图函数，用的是TC下的绘图程序，代码放在TXT中了，很小的。-using the c-language to discribe the picture,using the special include head.it is very little.

C语言写的椭圆程序，用TC环境下的绘图的头文件，很小的代码，保存在TXT中。-using the C-language to discribe the orel picture ,using the special head from the TC.

使用C#将txt文件中的点绘成图像，有投影变换，但没有解决各线之间相连的问题-Txt file using C# to the point plotted picture, there is a projective transformation, but does not solve the problems connected between the lines

这是一个用C语言实现的小项目，开发平台是Dev cpp，基于graphics.h库，程序实现了绘图功能，包括绘制直线、矩形、椭圆等，支持图形拖动和放缩，能够添加文本，可以说是一个简易版的CAD程序，具体功能介绍见资料中的ReadMe.txt(This is a small project implemented in C language. The development platform is Dev cpp. Based on graphics.h library, the program