一个OpenGL的三维图型变换程序代码，有球，正方体，椎体等，用键盘实现交互变换-A three-dimensional graphics OpenGL transform program code, a ball, cube, vertebra, etc., using the keyboard to achieve cross-Transform

脊柱X光图片的预处理以及一块椎骨的预处理和边缘轮廓提取-Spine X-ray images of the pretreatment and the pretreatment and the edge of a vertebra contour extraction

数据结构的实验,用一个堆椎来计算一个整形表达式的值,-Data structure experiment, a pile of vertebra can be used to calculate the value of a plastic expression,