// 链表.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

struct Student
{
    int num;
    float cj;
    struct student*next;
};

int main(int argc, char* argv[])
{
    struct Student a,b,c,*head,*p;

    a.num=101;a.cj=99.0;
    b.num=102;b.cj=89.7;
    c.num=103;c.cj=79.4;
    head=&a;
    a.next=&b;
    b.next=&c;
    c.next=NULL;
    p=head;
    while(p!=NULL)
    {
        printf("5d\t%5.1f\t\n",(*p).num,(*p).cj);
        p=(*p).next;
    }
    printf("Hello World!\n");
    return 0;
}

看样子没有什么问题，拿来编译 运行一下不就知道了？