大量的opengl的GLSL的GPU编程的例子，非常适合入门和高级编程者参考。-Opengl lot of examples of GLSL of GPU programming is ideal for introductory and advanced programming reference.

Apache POI 是用Java编写的免费开源的跨平台的 Java API，Apache POI提供API给Java程式对Microsoft Office格式档案读和写的功能。-Apache POI is a free open source cross-platform Java written in Java API, the Apache POI API for Java programs to read and write M

poi导出Excel jar 下载对以有很大帮助-poi export Excel jar Download a great help to have