STICA算法 Contents： Overview of Program Unpacking the STICA Tar File Computational Requirements Running Program Demonstration Summary of Parameters User Guide Example Output Copyright Contact Information. Acknowledgements-STICA：

这是根据孙新老师视频教程的指导，写出来的绘图程序，可以实现橡皮，矩形，圆，以及实现了图形重绘的功能-This is based on Sun video tutorial to guide new teachers, to write out the drawing program, can be achieved rubber, rectangular, round, and the realization of the graphics redraw function

在opengl使用之前，应该有一些入门程序引导，这个就是一个指引程序，帮助opengl的入门-Before use opengl, there should be some introductory program guide, this is a guidance program, help the opengl entry