代码:

---

#define LIST_INIT_SIZE 100
#define LISTINCREMENT 10
typedef struct
{
	int * elem;
	int length;
	int listsize;
}Sdqlist;

int Initlist(Sdqlist *V)
{
	V->elem=(int * )malloc(LIST_INIT_SIZE * sizeof(int));
  	if(!V->elem) 
	{
		printf("ERROR");
		return 1;
	}
  	V->length=0;
  	V->listsize=LIST_INIT_SIZE;
  	printf("OK\n");
	return 0;
}

int insert(Sdqlist *V,int i,int b)
{
	int j,*newbase;
  	if(i<1||i>V->length+1)
	{
		printf("ERROR");
		return 1;
	}
  	if(V->length>=V->listsize)
	{
    	V->elem = (int * )realloc(V->elem,(V->listsize+LISTINCREMENT) * sizeof(int));
    	if(!V->elem)
		{
			printf("FAIL");
			return 1;
		}
    	V->listsize+=LISTINCREMENT;
	}
	for(j=V->length-1;j>=i-1;j--)
		V->elem[j+1]=V->elem[j];
    V->elem[i-1]=b;
    V->length++;
  	return 0;
}
  
int delete(Sdqlist *V,int i)
{
	int j;
	if(i<1||i>V->length)
	{
		printf("ERROR");
		return 1;
	}
  	else 
	{
		for(j=i;j<V->length;j++)
        	V->elem[j - 1]=V->elem[j];
        V->length--;
	}
	return 0;
}

void display(Sdqlist *V)
{
	int j;
  	for(j=0;j<V->length;j++) 
		printf("%d",V->elem[j]);
  	printf("\n");
}
  
main()
{
	Sdqlist V;
  	int i,b,j;
  	Initlist(&V);
  	printf("please input the length:\n");
  	scanf("%d",&V.length);
  	printf("\n please input the value:\n");
  	for(j=0;j<=V.length-1;j++)
  		scanf("%d",&V.elem[j]);
  	printf("\n please input the insert postion:");
  	scanf("%d",&i);
  	printf("\n please input the insert node:");
  	scanf("%d",&b);
  	insert(&V,i,b);
  	display(&V);
  	printf("\n please input the delete postion:");
  	scanf("%d",&i);
  	delete(&V,i);
  	display(&V);
}

---

代码:

---

melody 001 # vi test.c
melody 001 # make test
cc     test.c   -o test
melody 001 # ./test
OK
please input the length:
5

 please input the value:
1
2
3
4
5

 please input the insert postion:3

 please input the insert node:8
128345

 please input the delete postion:4
12845

---

引用:

---

  else {for(j=v.length-1;j>=i-1;j--)      // j=v.length,v写错了,应该大写

---

引用:

---

  prinf("\n please input the value:\n");        // printf写错了

---

引用:

---

  scanf("%d".&i);                              // ,写错了,写成.

---