构建一个简单的链表

 

#include <iostream>

#define NULL 0

using namespace std;

 

struct Student

{

       long num;

       float score;

       struct Student *next;

};

int main()

{

       Student a,b,c,*head,*p;

       a.num=30001;a.score=98;

       b.num=30002;b.score=95;

       c.num=30003;c.score=100;

 

       head=&a;

       a.next=&b;

       b.next=&c;

       c.next=NULL;

 

       p=head;

       do

       {

              cout<<p->num<<" "<<p->score<<endl;

              p=p->next;

       }while(p!=NULL);

 

       return 0;

}