public void Push(T item)
{
StackNode <T> q = new StackNode <T>(item);
if (top == null)
{
top = q;
}
else
{
q.Next = top;
top = q;
}
++size;
}
public void Clear()
{
top = null;
size = 0;
}
public LinkStack()
{
top = null;
size = 0;
}
public StackNode(T val, StackNode <T> p)
{
data = val;
next = p;
}
public StackNode(T val)
{
data = val;
next = null;
}
public StackNode()
{
data = default(T);
next = null;
}
