请问这个代码运行后输出无限循环的不知道是什么的数字是什么问题啊？

Question

typedef struct splist
{
    int data;
    splist *next;
}splist;

void DY(splist *L)
{
splist *p;
p=L->next;
while(p)
{
printf("%d",&p->next);
p=p->next;
}
}

void CJ(splist *L)
{
    splist *p;
        L=(splist*)malloc(sizeof(splist));
        int c;
        int a;
        a=1;
            printf("请开始建表输入666结束");
        while(a!=666)
        {
            p=(splist*)malloc(sizeof(splist));
            scanf("%d",&c);
            p->data=c;
            p->next=L->next;
            L->next=p;
            a=c;
        }
}

int main()
{
splist L;
L->next=NULL;
L=(splist)malloc(sizeof(splist));
CJ(L);
DY(L);
return 0;
}

Answer 1

typedef struct splist
{
    int data;
    splist *next;
}splist;

void DY(splist *L)
{
        splist *p;
        p=L->next;
        while(p!=NULL)
        {
                printf("%d",p->data);
                p=p->next;
        }
}

void CJ(splist *L)
{
        splist *p;
        int c;
        int a;
        a=1;
        printf("请开始建表输入666结束");
        while(a!=666)
        {
            p=(splist*)malloc(sizeof(splist));
            scanf("%d",&c);
            p->data=c;
            p->next=NULL;
            p->next=L->next;
            L->next=p;
            a=c;
        }
}

int main()
{
    splist *L;
    L=(splist *)malloc(sizeof(splist));
    L->next=NULL;
    CJ(L);
    DY(L);
    return 0;
}