这是一个精简的迷你计算器应用软件程序，里面采用栈操作对输入数据和操作符进行处理，可以进行加减乘除表达式（含括弧）的计算。希望对你有用-This is a streamlined mini-calculator software program, which uses stack operations on the input data and operators to process, you can add or subtract multiply and divide expressions