老师我用C语言实现了一个栈你看下有什么需要修改的

struct  Stack
{
	int e[10];
	int size;
};
typedef Stack* ArrayStack;
Stack* CreateStack() {
	ArrayStack stackBottom = (ArrayStack)malloc(sizeof(Stack*));
	stackBottom->size = 0;
	return stackBottom;
}
int getsize(ArrayStack stack) { return stack->size;}
void push(ArrayStack stackBottom, int e) {
	int i = getsize(stackBottom);
	stackBottom->e[i] = e;
	stackBottom->size++;
}
void pop(ArrayStack stack) {
	printf("出栈:%d\n", stack->e[stack->size-1]);
	stack->size--;
}
int main() {
	ArrayStack stack = CreateStack();
	push(stack, 1);
	push(stack, 2);
	pop(stack);
	pop(stack);
}```