说明：  编译器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：词法分析部分、语法分析处理及四元式生成部分、输出显示部分。
(Compiler design compiler compiler involved in three of five stages, namely, lexical analyzer, syntax analyzer and intermediate code generator. Compiler output results include lexical analysis of binary sequence, variable watch, state stack analysis shows and quaternion sequence procedures. The entire compiler is divided into three parts: part of lexical analysis, grammar analysis and to generate part of quaternion type, the output display.)