八、 设计SAMPLE语言的语法、语义分析器，输出四元式的中间结果。 检查要求： a] 启动程序后，先输出作者姓名、班级、学号（可用汉语、英语或拼音）。 b] 请求输入测试程序名，键入程序名后自动开始编译。 c] 输出四元式中间代码（样式见样板输出3和4）。 d] 能发现程序的语法错误并输出出错信息。 -Eight, design SAMPLE language grammar, semantic analyzer, the output quaternion type

设计模式简单例子 设计模式简单例子-design pattern simple exmplesdesign pattern simple exmples

I have written this program to make it easy for anyone to make computer graphics based structrual design of simple compounds. (User can also make very complex chemical structures but he/she will need a clear idea of 3D geometry and some basic trigno