关于单向链表添加节点问题！！！

[唐勉的技术博客]

单向链表如下，希望各位朋友帮我写一个初始化并添加节点的例子！！！
struct badinfo
{
ulong num;
struct badinfo *next;
};
本人现在急用，非常感谢！！！

[Shepherd_0]

什么意思？请表达清楚一些

[bhw98]

单向链表不能任意插入节点，只能加头、加尾
struct badinfo *pHead; // 头
struct badinfo *pTail; // 尾

void Init()
{
pHead = NULL;
pTail = NULL;
}

void AddHead(struct badinfo *p)
{
p->next = pHead;

if(pHead == NULL)
{
pHead = p;
pTail = p;
}
else
{
pHead = p;
}
}

void AddTail(struct badinfo *p)
{
p->next=NULL;

if(pTail == NULL)
{
pHead = p;
pTail = p;
}
else
{
pTail->next = p;
pTail = p;
}
}

[fangcheng]

void AddNode(struct badinfo *pHead)
{
struct badinfo *p = new struct badinfo;

p->num = 0;
p->next = NULL;

if (pHead == NULL)
pHead = p;
else
{
while (pHead->next != NULL) pHead = pHead->next;
pHead->next = p;
}
}