C++课程的复选框的实例，对于初学者可能用用哦，是一些基础函数的调用。-Checkbox instance of C++ courses for beginners may be used with, oh, some basic function call.

此程序为c#编写的几何图形处理编程实例，附件里面带sourceCode和相应的范例图片。-this program is fix the geometry image operations in C#，it includes the souceCode and pictures.