不带头节点的链表尾插法C++实现

#include 

using namespace std;

typedef int DATA;

//链表的尾插法 
struct SNode 
{
	DATA data;
	SNode* pNext;
};

struct SList
{
	SNode* m_pHead;
	SNode* end_pHead;

	SList()
	{
		m_pHead = NULL;
		end_pHead = m_pHead;
	}
	~SList()
	{

	}
	void AddHead(DATA d)
	{
		//尾插法比头插法复杂一点，要判断输入的是不是第一个结点，如果是第一个节点，就要头结点指向第一个
		//节点，而且需要多用一个指针 end_pHead;(一直指向尾节点)
		SNode* p = new SNode;
		p->data  = d;
		if (m_pHead == NULL)
		{
			m_pHead = p;
		}
		else
		{
			end_pHead->pNext = p;
		}
		end_pHead = p;

		end_pHead->pNext = NULL;
	}
	
	void Delete_Data()//删除数据
	{
		SNode* p = m_pHead;
		if(p != NULL)
		{
			m_pHead = m_pHead->pNext;
			delete p;
		}

	}

	int GetCount()
	{
		SNode* p = m_pHead;
		int i = 0;
		while(p)
		{
			i++;
			p=p->pNext;
		}

		return i;
	}

	void prints()
	{
		SNode* p = m_pHead;

		while (p )
		{
			cout<data<pNext;
		}
	}




};

int main()
{
	SList list;
	while(true)
	{
		cout<<"请输入一个数据："<>i;
		if (i == 0)
		{
			break;
		}
		list.AddHead(i);
	}

	list.prints();
	cout<<"链表的长度为："<