Don't Understand C++ Control Structures?

I'm learning to program in C++ and I'm doing good so far except with control structures. I don't get how they work I tried making a program were it says my age then a statement after making a simple subtraction, but I couldn't get it to work. Will some one please give some code to explain this it doesn't have to be complicated at all thanks in advanced.Don't Understand C++ Control Structures?
Like first poster said, be more specific. The topic of Control Structures is very simple, I can't imagine anyone motivated to learn programming not being able to understand it. What exactly are you having trouble with. As always, post your code.





@3rd poster: Control Structures are not structs.Don't Understand C++ Control Structures?
Like Ahmed said ^^, it's a very simple concept.





Think about it like a class except it is defaulted to public, whereas a class is defaulted to private.
You're going to have to be more specific about what exactly the problem is.