关于下面代码段的说法错误的是( )。-(void) tableView:(UITableView *)tableView moveRowAtIndexPath: (NSIndexPath *) sourceIndexPath toIndexPath:(NSIndexPath *) destinationIndexPath{ NSString *curStuName = allStudentsName [sourceIndexPath.row]; [allStudentsName removeObject: curStuName]; [allStudentsName insertObject: curStuName atIndex:destinationIndexPath.row];}