Combining with knowledge representation and automatic reasoning principle of ai and generic paradigm , the system has these main functions : ? it is able to show different solutions of typical example ; ( 2 ) it can automatically generate problems similar to the example for students to solve by providing them with clues ; ( 3 ) these problems can be studied by demonstrating the complete solution process and answers with the help of automated reasoning , or by providing real - time prompts to students concurrent with the students " solution processes with the help of automated reasoning ; ? it provides exercises and is able to call a program produced by the group ( the translator ) , which transfers apla programs to executable programs so as to verify its correctness ; ( 5 ) it let teacher to add examples in the database ; etc . hi the course of systematic research , we deeply investigated the relevant knowledge of the system and made some innovation : about teaching content , we select par method as the main content 本系统选用薛锦云教授的par方法为主要教学内容，应用人工智能的知识表示和自动推理原理及泛型思想，使得系统具有以下核心功能：展示几种典型例题的解；以泛型思想为指导，实现了无限题库，可以自动生成与典型例题类似的问题给学生求解并给予提示；对于这些题目，计算机可以自动推理出由问题到程序的全过程供学生学习；也可通过自动推理根据用户的实际做题情况实时给出提示，交互式地帮助学生学习算法程序设计；学生可以从问题库中获得练习，并调用转换器，将自己的apla程序转化为可执行语言程序，运行以检验其正确性；对教师而言，可以对已有的实例库、问题库进行添加操作等。在系统的研制过程中，我们深入研究了系统的各方面相关知识，并进行了多方面的创新：在教学内容方面，首次选用par方法为主要内容。
