void insertSort(SortObject  * pvector){
int i,j;
RecordNode temp;
for( i=1 ; i<pvector->n ; i++){

temp=pvector->record[i] ; j=i-1;

while ( ( temp.key < pvector->record[j].key )&&( j>=0 )) {

pvector -> record[j+1]=pvector->record[j] ; j--;

}
if(j!=i-1)pvector->record[j+1]=tmep;
}
}