程序代码：

#include
#include
#include
struct stu
{
    int date;
    struct stu *next;
};
//建立
struct stu *jianli()
{
    struct stu *head;
    head=(struct stu *)malloc(sizeof(struct stu));
    scanf("%d",&head ->date);
    head->next=NULL;
    return(head);
}
//遍历
void bianli(struct stu *list)
{
    struct stu *p;

    for(p=list;p!=NULL;p=p->next);
    printf ("%d",p->date);
}
//插入
struct stu *charu (struct stu *list,int n)
{
    struct stu *now;
        now=(struct stu *)malloc(sizeof(struct stu));
    now->date=n;
    now->next=list ;
    return now;
}
//主函数
main()
{
    struct stu *head;
    head=jianli();
    bianli(head);
    head=charu(head,50);
    bianli(head);
    return 0;
}

为什么提示 链表.exe已停止工作  我是用vs2012编译的。