内存问题？

[elegant87]

//编译和连接能通过，但运行时候提示内存错误！大家帮忙看看吧！
//哪有问题呢？大家提提意见吧！
#include <iostream>
#include <cstdlib>

using namespace std;

typedef struct node
{
     int data;
     struct node *next;
}Qnode;


class Queue
{
public:
	Queue();
    void InitQueue();
    void show()const;
    void EnQueue(int e);
    void DeQueue(int &e);
    ~Queue();
private:
    Qnode *rear;
    Qnode *front;
};

Queue::Queue()
{
	front=new node;
	rear=front;
	front->next=NULL;
}

void Queue::InitQueue()
{
	 Qnode *p2=new node;
	 int i=0;
     cout<<"请输入数值(-1 退出): ";
     cin>>p2->data;
     while (p2->data!=-1)
	 {
		 ++i;
		 if(i==1)
		 {
			 front->next=p2; //队首指针指向队首
			 rear->next=p2;
			 rear=p2;
		 }
		 else
		 {
			 rear->next=p2;
             rear=p2;
		 }
		 p2=new node;
         cin>>p2->data;
	 }
     rear->next=NULL;
}


void Queue::show() const
{

    if(front==rear)
		cout<<"此队为空队!"<<endl;
    else 
	{	
		node *p=front->next;
		cout<<"顺序的队值为: "<<endl;
        while(p)
        {
			cout<<p->data<<" ";
            p=p->next;
		}
		cout<<endl;
	}
}

void Queue::EnQueue(int e) //入队
{
     node *p=new node;
     p->data=e;
     p->next-=NULL;
     rear->next=p;
     rear=p;
}

void Queue::DeQueue(int &e) //从队首删除一个元素
{
    if (front==rear)
		cout<<"此队为空队!"<<endl;
    else 
	{	
	    node *p=front->next;
        e=p->data;
        front->next=p->next;
	    if(rear==p) 
			rear=front;
       delete p;
	}
}

 Queue::~Queue()
{
	while(front)
	{
		rear=front->next;
        delete front;
        front=rear;
	}
}

int main ()
{
	Queue  Q;
	int e;
	Q.InitQueue();
    cout<<"请输入要进队数值:"<<endl;
	cin>>e;
	Q.EnQueue(e);
    Q.DeQueue(e);
    cout<<"出队数值: "<<e<<endl;
    Q.show();
	cout<<endl;
    return 0;
}

[珍惜生命远离CPP]

void Queue::EnQueue(int e) //入队
{
     node *p=new node;
     p->data=e;
     p->next-=NULL;<===多了个减号吧
     rear->next=p;
     rear=p;
}

void Queue::EnQueue(int e) //入队
{
     node *p=new node;
     p->data=e;
     p->next=NULL;
     rear->next=p;
     rear=p;
}

[yinyuexiuluo]

void Queue::InitQueue()
{
Qnode *p2=new node;
int i=0;
cout<<"请输入数值(-1 退出): ";
cin>>p2->data;
while (p2->data!=-1)
{
++i;
if(i==1)
{
front->next=p2; //队首指针指向队首
rear->next=p2;
rear=p2;
}
else
{
rear->next=p2;
rear=p2;
}
p2=new node;
cin>>p2->data;
}
rear->next=NULL;
}

[c19122273]

void Queue::InitQueue()
{
     Qnode *p2=new node;
     int i=0;
     cout<<"请输入数值(-1 退出): ";
     cin>>p2->data;
     while (p2->data!=-1)
     {
         ++i;
         if(i==1)
         {
             front->next=p2; //队首指针指向队首
             rear->next=p2;
             rear=p2;
         }
         else
         {
             rear->next=p2;
             rear=p2;
         }
         p2=new node;
         cin>>p2->data;
     }
     rear->next=NULL;
}

你这个函数里面的 i在哪有输入啊

[星羽]

如1楼所说

[hurryboylqs]

呵呵，写代码要注意点

[tianyuanfeige]

ding