datatype listSearchPos(seqList *S,int pos)
{
if (listEmpty(S))
{
printf("表空,查找失败n");
return -1;
}
if (pos < 0 || pos > S->len-1)
{
printf("位置不合法,查找失败n");
}
for (int i=0;ilen;i++)
{
if (pos == i)
{
printf("%dn",S->data[i]);
break;
}
}
}



