这是一个对算术表达式进行求值的控制台程序，程序主要用了数据结构中的栈的方法思想。先把表达式转化为后缀表达式，然后两对后缀表达式求值。程序可以实现对加、减、乘、除、乘方进行运算，还支持括号-This is an arithmetic expression is evaluated console program, the program mainly used the data structure stack method thought. First expression into postfix expression, and then two pairs postfix expression is evaluated. Programs can be achieved on addition, subtraction, multiplication, division, exponentiation for computing, but also support brackets