说明：  编译课程设计的基本任务是设计一个mini-pascal语言的编译器，将mini-pascal 语言的源程序翻译成等价的中间代码。要求输入mini-pascal语言写的源程序（以文件形式存储），首先经过词法分析，输出原程序分析后的二元式文件，供语法制导翻译用。经过语法制导翻译将词法分析器产生的二元式翻译成等价的四元式形式，也就是中间代码的生成。要求能进行正常的关键字如：begin,end, if ,else 等的识别
(Compile the basic task of curriculum design is to design a mini-pascal language compiler, the mini-pascal language source translated into an equivalent intermediate code. For the importation of mini-pascal source code written in (stored in document form), first through lexical analysis, output analysis of the original program binary-type file for Syntax interpreter. After translation of the lexical analyzer Syntax-generated binary-translation into an equivalent form of the quaternary type, that is, intermediate code generation. Required to carry out normal keywords such as: begin, end, if, else, etc. Identification)