将数学表达式转换成逆波兰表达式，用C#语言-The mathematical expression into Reverse Polish Notation, using C# language

RPN Calculator in C++ and develop in Eclipse environment.

编译原理的实验：bison实现的逆波兰计算器，doc文件有编译过程，注意安装bison在运行-bison implemented RPN calculator, doc file has the compilation process, pay attention to install bison running