Please help! I am new to programming!

Hello!
I have never used one of these things but I am having a really hard time working on a project and can't seem to find anyone who is familiar with C++.
I need to build a simple calculator with functions, a loop and case statements? It will run - but does not work right... any takers?

>> It will run - but does not work right... any takers?
Post your code (in [code][/code] tags). Post what input you give. Post what output you expect and the output you get instead.