Egg是由哈尔滨工业大学计算机科学与技术学院教师孙志岗开发的一个开放源代码软件，采用GPL协议。它的设计目标是开发一个极其简单、直观的Win32平台下的图形动画函数库，C语言的初学者可以使用它开发动画、游戏等图形程序，让C语言的学习过程变得更有趣，更有成就感。-Egg from the Harbin Institute of Technology Computer Science and Technology Teachers Zhi-Gang development of an open source software, using GPL agreement. Its design goal is to develop a very simple and intuitive graphical animation Win32 platform library, C language, beginners can use it to develop animation, games and other graphics programs that allow C language learning process more interesting and more sense of accomplishment.