我们设计的编译程序涉及到编译五个阶段中的三个，即词法分析器、语法分析器和中间代码生成器。编译程序的输出结果包括词法分析后的二元式序列、变量名表、状态栈分析过程显示及四元式序列程序，整个编译程序分为三部分：

(1) 词法分析部分

(2) 语法分析处理及四元式生成部分

(3) 输出显示部分

-We designed the compiler to compile the five stages involved in the three, namely, lexical analyzer, syntax analyzer and intermediate code generator. Compiler including lexical analysis, the output of the binary-type sequence, variable watches, state stack of the process show and four-type sequence program, the compiler is divided into three parts: (1) lexical analysis (2) parsing treatment and four part-type generation (3) the output display section