#include<iostream>
#include<conio.h>
using namespace std;
#define OK 1
#define MAXSIZE 10
#define OVERFLOW -1
#define ERROR 0
typedef int Status;
typedef  struct
{
char  no[20];
char name[50];
float price;

}Book;
typedef Book ElemType;
typedef  struct
{
Book *elem;
int length;
}SqList;

Status   InitList(SqList L)
{
   L.elem=new ElemType[MAXSIZE];
   if(!L.elem)
       exit(OVERFLOW);
   L.length=0;
   return OK;
}
Status GetElem(SqList L ,int i,ElemType e)
{
if(i<1||i>L.length)
return ERROR;
e=L.elem[i-1];
return OK;
}
int main()
{

SqList L;
Book a;
InitList(L);
L.elem[L.length].price=0;
L.elem[L.length+1].price=1;
L.elem[L.length+2].price=2;
GetElem(L,1,a);
cout<<L.length;

cout<<L.length;
getch();
return 0;
}

我就是写个数据结构的顺序表，怎么给前三个对象的Price属性赋值，怎么运行后就溢出了呢？