一个编译原理语法和语意分析的程序，可以帮助理解编译原理在呈现上的体现。-A compiler syntax and semantic analysis theory of the program, can help build understanding of the principles of the present embodiment.

在编译原理中有关语义的判定是一项基本功能，本程序主要解决语义判断的功能。-In compiling the relevant semantic determination principle is a basic function, the program mainly to solve the semantic judgments.