用C++实现的计算器的源程序，可以做科学计算，很小巧实用。-C realized calculators of the source, can be done in scientific computing, a very compact practical.

c语言编写的dos界面下的计算器，支持加减乘除括号等简单运算，代码清晰注释丰富，可作为新手学习栈的使用-c language calculator dos interface, support brackets and other simple arithmetic operations, code clear notes and rich, as a novice to learn the use of the stack