Simple Function Knowledge

//A simple knowledge of functions and what it can do.

#include <iostream>
using namespace std;

//Declares for the program to read the function and it's code to run it succesfully.
void simpleFunction();

//Standard manin function that starts when user opens program.
int main()
{
    simpleFunction();
    return 0;
    }

//function
void simpleFunction()
{
     cout << "If this text shows up it'll mean that the function succesfully worked!" << endl;
     system("pause");
     }