一个简单的语法分析器实现，采用的是自顶向下的算法，结构清晰，容易理解，适合初学者学习。-Parser A simple realization is based on top-down algorithm, the structure of clear and easy to understand for beginners to learn.

this a english paser that is writed in c sharp .net. i hope it will be advatageaus.-this is a english paser that is writed in c sharp .net. i hope it will be advatageaus.

a compiler with lalr paser