程序代码：

#include<stdio.h>  
#include<stdlib.h>  
  
typedef struct node  
{  
    int data;  
    struct node *next;  
}Linklist; 

Linklist *CreateList_Head(Linklist *L,int n)
{
    int i;
    Linklist *p;
    L = (LinkList *)malloc(sizeof(LinkList));
    L->next = NULL;
    for(i=n;i>0;--i)
    {
        p = (LinkList *) malloc (sizeof(LinkList));
        scanf("%d",&p->data);
        p->next=L->next;
        L->next=p;
    }
    return L;
}

void main()
{
    int m;
    Linklist *L;
    printf("please input m:\n");
    scanf("%d",&m);
    printf("head_insert is :\n");
    CreateList_Head(L,m);
}