This is a test of computer graphics, programming on the example of the North Star .
这是计算机图形学的一个试验，有关于北极星编程实现的例子。
Page description language is a new kind programming language with powerful graphics description ability.
页面描述语言是一种新型的程序设计语言，具有很强的图形描述功能。
Page description language is a new kind programming language with powerful graphics description ability.
页面描述语言是一种新型的程序设计语言，具有很强的图形描述功能。
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