#include<stdio.h>
#include<stdlib.h>
#define LEN sizeof(struct number)
struct number
{
    int num;
    struct number  *next;
};
int n;
struct number *creat(int k)
{
    struct number *head,*p1,*p2;
    n=0;
    p1=p2=(struct number *)malloc(LEN);
    scanf("%d ",&p1->num);
    head=NULL;
    while(n<k-1)
    {
        n++;
        if(n==1)head=p1;
        else p2->next=p1;
        p2=p1;
        p1=(struct number *)malloc(LEN);
        scanf(" %d",&p1->num);
    }
    p2->next=NULL;
    return(head);
}
void print(struct number *head,int k)
{
    struct number *p;
    n=0;
    p=head;
    if(head!=NULL)
        do
        {
            printf("%d ",p->num);
            p=p->next;
        }while(p!=NULL);
}
int main()
{
    int N,M;
    struct number *pt1,*pt2;
    scanf("%d",&N);
    pt1=creat(N);
    scanf("%d",&M);
    pt2=creat(M);
    print(pt1,N);
    print(pt2,M);
    printf("\n");
    return 0;
}
咋结果为：
输入：
5
1 2 3 4 5
6
11 22 33 44 55 66
输出：
1 2 3 4 11 22 33 44 55
咋是5和66没输出啊！！

struct number *creat(int k)


{

   
struct number *head,*p1,*p2;

  
  n=0;

   
 p1=p2=(struct number*)malloc(LEN);

    scanf("%d ",&p1->num);

  
  head=NULL;

   
 while(n<k)

   
 {

        
n++;

      
  if(n==1)head=p1;

   
    else p2->next=p1;

     
   p2=p1;

   
    p1=(struct number*)malloc(LEN);

        scanf(" %d",&p1->num);

  
 }

   
p2->next=NULL;

   return(head);


}

k-1改为k的话输入有多了一组

#include<stdio.h>
#include<stdlib.h>
#define LEN sizeof(struct number)
struct number
{
    int num;
    struct number  *next;
};
int n;
struct number *creat(int k)
{
    struct number *head,*p1,*p2;
    n=0;
    p1=p2=(struct number *)malloc(LEN);
    scanf("%d",&p1->num);
    head=NULL;
    while(n<k-1)
    {
        n++;
        if(n==1)head=p1;
        else p2->next=p1;
        p2=p1;
        p1=(struct number *)malloc(LEN);
        scanf("%d",&p1->num);
    }
    /*关键在下面两行*/
    p2->next = p1;
    p2 = p1;
    /*在上面的循环中最后一个输入数据没有加入到链表中(lz自己体会)*/
    p2->next=NULL;
    return(head);
}
void print(struct number *head,int k)
{
    struct number *p;
    n=0;
    p=head;
    if(head!=NULL)
        do
        {
            printf("%d ",p->num);
            p=p->next;
        }while(p!=NULL);
}
int main()
{
    int N,M;
    struct number *pt1,*pt2;
    
    scanf("%d",&N);
    pt1=creat(N);
    
    print(pt1,N);
    printf("\n");
    
    scanf("%d",&M);
    pt2=creat(M);
    
    print(pt2,M);
    printf("\n");
    return 0;
}