#include<stdio.h>
#include<stdlib.h>
#define len sizeof(Member)
struct member
{int num;
 struct member *next;
};
typedef struct member Member;
void  insertup(Member *head, Member *newp)
{Member *pre,*suc;
  pre=head;
  suc=head->next;
  while (suc!=NULL)
   {if (suc->num >=newp->num)
       break;
     pre=suc;
     suc=suc->next;
   }
       pre->next=newp;
       newp->next=suc;
}
  void main()
  {
      int n,i=0;
      Member *head,*p,*q,*a;
      head=p=q=(Member *)malloc(len);
      printf("请输入要创建数据的个数：");
      scanf("%d",&n);
      printf("请按从小到大依次输入每个成员的号码\n");
       while(i<n)
       {
           scanf("%d",&p->num);
           q=(Member *)malloc(len);
           p->next=q;
           if(i==n-1)p->next=NULL;
           p=q;
           i++;
       }
       printf("请输入要插入的数据:");
       scanf("%d",&a->num);
       insertup(head,a);
       printf("插入后的数据为：");
       i=0;
       p=head;
       while(i<=n)
       {
           printf("%d",p->num);
           p=p->next;
           i++;
       }

}

刚学结构体而已，仅仅是了解一下链表罢了。

只会调试编译出错的，这个编译正确但运行错误的无能为力。

嗯，这个我知道了。我会去学习的，谢谢。