通过完成预测分析法的语法分析程序，了解预测分析法和递归子程序法的区别和联系。使学生了解语法分析的功能，掌握语法分析程序设计的原理和构造方法，训练学生掌握开发应用程序的基本方法。有利于提高学生的专业素质，为培养适应社会多方面需要的能力。-By completing the forecast analysis grammar analysis program, understanding the forecast analysis and recursive subroutine method difference and connection. Enable the students to understand the function of grammar analysis grammar analysis program, the design principles and construction methods, training students to master the basic method of application development. To improve the professional quality of the students, in order to meet the various demands of society the ability.