建立一个顺序表，将a,b,c,d放入表中，然后在main函数中输出！

// List.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"

#define OK 1
#define ERROR 0
#define OVERFLOW 0
#define INIT_LIST_SIZE 30
#define LIST_INC_SIZE 10
#define ElemType char
typedef struct List
{
ElemType* elem;
int listSize;
int length;
}List, *pList;

int InitList( List &L )
{
L.listSize = INIT_LIST_SIZE;
L.length = 0;

if( !( L.elem = ( ElemType* )malloc( sizeof( ElemType ) * L.listSize ) ) )
exit( OVERFLOW );

return OK;
}

int ListInsert( List &L, int pos, ElemType e )
{
int i;
ElemType *p;

if( pos < 0 || pos > L.length )
return ERROR;

if( L.length >= L.listSize )
{
if( !( p = ( ElemType* )realloc( L.elem, sizeof( ElemType ) * ( L.listSize + LIST_INC_SIZE ) ) ) )
exit( OVERFLOW );
L.elem = p;
L.listSize += LIST_INC_S