C#算术表达式求值我是的算法核心是逆波兰式.还有就是w3eval这个算术表达式求值算法很不错.但有一种表达式它会报错.我想这是一个BUG:w3eavl不能计算"-(3+5)"的值.或者类似的计算式.-C# Arithmetic expressions evaluate my algorithm is the core of Reverse Polish-style. W3eval there is the arithmetic expression evaluation algorithm is pretty good. However, one expression of it will error. I think this is a BUG: w3eavl can not calculation