链表问题

[smdszgzh]

#include <iostream>
using namespace std;
struct Node
{
	int data;
	Node *next;
};

class list
{
public:
	Node *head;
public:
	list()
	{
		head=NULL;
	}
	list Create(list &L);
	void Output(list &L);
	int Insert(list &L,int i,Node e);
	Node Erase(list &L,int i,Node e);
};
list Create(list &L)
{
	L.head=new Node;
	int x;
	do 
	{
		cout<<"Please input the number(-999 quit)"<<endl;
		cin>>x;
		Node *p=new Node;
		p->data=x;
		p->next=L.head->next;
		L.head->next=p;
	} while (x!=-999);
	cout<<"成功建立链表"<<endl;
	return L;
}

void Output(list &L)
{
	while(L.head->next!=NULL)
	{
		cout<<L.head->data<<" ";
		L.head->next=L.head->next->next;
	}
	cout<<endl;
}
int main()
{
	list L;
	Create(L);
	Output(L);
	return 0;
}

程序运行有问题

[baihacker]

#include <iostream>
using namespace std;
struct Node
{
    int data;
    Node *next;
};

class list
{
public:
    Node *head;
public:
    list()
    {
        head=NULL;
    }
    list Create(list &L);
    void Output(list &L);
    int Insert(list &L,int i,Node e);
    Node Erase(list &L,int i,Node e);
};
list Create(list &L)
{
    L.head=new Node;
    L.head->next = NULL;//这里
    int x;
    do 
    {
        cout<<"Please input the number(-999 quit)"<<endl;
        cin>>x;
        Node *p=new Node;
        p->data=x;
        p->next=L.head->next;
        L.head->next=p;
    } while (x!=-999);
    cout<<"成功建立链表"<<endl;
    return L;
}

void Output(list &L)
{
    while(L.head->next!=NULL)
    {
        cout<<L.head->next->data<<" ";//这里
        L.head->next=L.head->next->next;
    }
    cout<<endl;
}
int main()
{
    list L;
    Create(L);
    Output(L);
    return 0;
}
//和预期结果一样.如果不想要那个-999,自己改改
d:\>a
Please input the number(-999 quit)
1
Please input the number(-999 quit)
2
Please input the number(-999 quit)
3
Please input the number(-999 quit)
4
Please input the number(-999 quit)
5
Please input the number(-999 quit)
6
Please input the number(-999 quit)
7
Please input the number(-999 quit)
8
Please input the number(-999 quit)
9
Please input the number(-999 quit)
-999
成功建立链表
-999 9 8 7 6 5 4 3 2 1

[九桔猫]

路过，观望中