1.1　　引言

1.1.1 设计目的

本次课程设计是在完成一个学期的编译原理课程之后，为了进一步加深对编译原理相关知识的理解，培养实际解决问题的能力而进行的。结合本学期所开设的软件工程课程，本次课程设计实验过程要求按照软件工程的思想来组织开发过程，按照软件生命周期的阶段划分来进行。由于课程设计规模较小，所以对软件生命周期进行适当的合并，简化为五个阶段，即需求分析、总体设计、详细设计、编码实现和测试。

1.1.2　　设计任务

针对本次课程设计我们设计了一个简化的pascal语言，称为mini-pascal。设计的任务就是开发出针对mini-pascal语言的编译程序。标准的编译程序结构分为五部分，分别是词法分析、语法分析、语义分析和中间代码生成、优化和目标代码生成。由于时间和能力所限，我们的编译程序只包括前三个部分，最后生成四元式形式的中间代码。

-1.1 Introduction 1.1.1 design purpose of this course is designed to complete a semester of compiler theory courses , in order to further deepen the knowledge of compiler theory understanding, develop practical problem-solving skills into practice. In light of the semester created software engineering courses The experimental curriculum design process requirements in the software engineering idea to organize the development process. in the software life cycle stages to. Due to the smaller size of the curriculum design, the software life cycle appropriate to consolidate, streamline and five stages that the needs analysis, design, detailed design, coding and testing to achieve. 1.1.2 design task against the current curriculum design we design a simplified pascal language, called mini-pascal.