push.c

堆栈的基本功能实现,链表方式实现

#include "head.h"
JD  *push(JD *phead,JD *pnew,JD *ptop)
{
	pnew->next = ptop;
	phead->next = pnew;
	ptop = phead->next;
	return(ptop);
}