一. 实验目的： 设计、编写和调试一个具体的词法分析程序，加深对词法分析理论和自动词法分析工具的理解、实践和掌握。 二. 实验要求： ① 学习和理解正则表达式理论,写出C—语言的记号的完整的正则表达式;(适当使用正则定义) ② 学习和理解有限机理论,根据前面的正则表达式,用基于经验的方法画出C—语言的记的DFA图; ③ 用基于DFA图的算法编写C—语言的词法分析程序; ④ 学习词法分析程序的自动生成工具,使用LEX工具实现C—语言的词法分析程序. - 1. Experimental goal: The design, compiles and debugs a concrete lexical analyaer, deepens to the lexical analysis theory and the automatic lexical analysis tool understanding, practices and grasps. 2. The experiment requests: (1) study and the understanding regular expression theory, writes the C 鈻anguage the symbol integrity regular expression; (Suitable use regular definition) (2) study and the understanding limited machine theory, according to the front regular expression, with draw the DFA chart based on the experience method which the C 鈻anguage records; (3) uses based on the DFA chart algorithm to compile the C 鈻anguage the lexical analyaer; (4) study lexical analyaer automatic production tool, uses the LEX tool to realize the C 鈻anguage lexical analyaer 下载
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内容和要求 1. 论述课题的性质、内容以及本次课程设计的目的和要求。 2. 说明系统对计算机软、硬件环境的基本要求，对Windows操作系统和VF6.0数据库管理系统简要的说明。 3. 总体设计方案的分析、比较和论证。 4. 数据库的建立，数据库中表的结构，各表中关键字的设置，表与表之间的关系。 5. 应用程序的菜单设计和界面设计，表单和报表的设计。 6. 编写代码、上机输入、调试、修改并运行通过。 7. 编写课程设计说明书。说明书是总结性的技术文件，应全面叙述整个设计的内容及过程（可参考上述6条），发现的问题及解决方法等。 8. 源代码和参考书目应作为说明书的附录。 9. 说明书应采用学校印刷的课程设计专用纸张，文字说明不少于6000字，数据库的总记录条数不少于100条。说明书中应包括系统结构示意图。 10．说明书一律横向装订，装订线在左侧。按目录、正文、 -a content and requirements. Discussed issues of the nature, content and design of the course the purpose and requirements. 2. Note to the computer system software and hardware environment, the basic requirements are that for Windows operating systems and database management systems VF6.0 briefly. 3. Design program analysis, comparison and verification. 4. The creation of the database, the database table structure, the keyword table settings, table and the relationship between the table. 5. Application procedures for the design and menu interface design, and the statements of the form design. 6. Prepared a code on the machine, debug, and run through the changes. 7. Curriculum design prepared statement. Brochure is a summary of technical papers, should fully describe the whole design of the 下载
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