问iOS:如何使用按钮切换Tableview行？

EN

@implementation MyTableViewController
...
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)p {
    MyDetailViewController *vc = [[MyDetailViewController alloc] initWithRow:p.row];
    // configure vc
    vc.delegate = self;
    [self.navigationController pushViewController:vc animated:YES];
    [vc release];
}

- (void)myDetailViewControllerDidSelectPrevious:(MyDetailViewController *)vc {
    // use vc.row-1 to update the view controller or push a new one
}
- (void)myDetailViewControllerDidSelectNext:(MyDetailViewController *)vc {
    // use vc.row+1 to update the view controller or push a new one
}
@end

@protocol MyDetailViewControllerDelegate
- (void)myDetailViewControllerDidSelectPrevious:(MyDetailViewController *)vc;
- (void)myDetailViewControllerDidSelectNext:(MyDetailViewController *)vc;
@end
@implementation
...
- (void)nextButtonPressed:(id)sender {
    [self.delegate myDetailViewControllerDidSelectNext:self];
}
- (void)previousButtonPressed:(id)sender {
    [self.delegate myDetailViewControllerDidSelectPrevious:self];
}
@end