用c#编写的网页版计算器。基本功能已经实现。实现功能的隐藏域我先把他可见了，让大家可以更好的查看代码逻辑。后续的功能都是重复的，只需写入相应逻辑即可-Pages written in c# version of the calculator. The basic function has been achieved. Functions hidden field first he can be seen, so that we can better view the code logic. Fo