使用UILongPressGestureRecognizer选择一个批量日志按钮

这是我的问题，我想用多个按钮来做，而我只用一个按钮。。。

-(void)viewDidLoad
{
UILongPressGestureRecognizer *longpressGesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressHandler:)];
longpressGesture.minimumPressDuration = 3;
[longpressGesture setDelegate:self];
[self.pieza11 addGestureRecognizer:longpressGesture];
[self.pieza12 addGestureRecognizer:longpressGesture];
[self.pieza13 addGestureRecognizer:longpressGesture];
[self.pieza14 addGestureRecognizer:longpressGesture];
    [longpressGesture release];

}