用C语言编写的计算器程序！请大家下载来,不错的源码(A calculator program written in C language!)

简单计算器,实现简单的加减乘除，包含源代码程序，适合C sharp 初学者学习用。(A calculation process that transforms one or more inputs into one or more results, with variable change. For example, multiplying 7 by 6 is a simple algorithmic calculation.)