Automatic Identification of Knowledge Points from Program Code Based on Syntax Feature Tree

Whether it is in the program design training recommending system or in the code searching domain, it may need to identify or get the statistic of knowledge in the code. However, it is easy to be overlooked and to get errors using manual identification. Besides, it isn´t real-time. This paper will use the method that generate the syntax tree and use feature tree to match the knowledge in the syntax tree to identify code knowledge automatically. The experimental results show that the system can effectively and accurately gathers the statistic of knowledge in program code in real time.