{

top？ =? - 1;

This-> Size? =? Size;

Data? =? New? int[size]；

}

intStack::~intStack()

{

Delete? [] data;

}

Bull? intStack::Push(int？ elem)

{

If (top? ==? Size? -? 1)

{

Return? Fake;

}

other

{

Data [++top]? =? elem

}

Return? True;

}

Bull? intStack::Pop(int？ & ampelem)？ //Stacking operation

{

If (top? ==? - 1)

{

Return? Fake;

}

other

{

elem？ =? Data [top];

Data [top-];

}

Return? True;

}

int？ intStack::Length(？ )? const？ //Get the number of elements in the stack

{

Return? Size;

}