Objective c 如何在按键时传递uibutton的标签

我想在将uibutton的标记按到指定的方法时传递该标记，但当我尝试此操作时，会收到一条错误消息。请帮忙。 代码：

然后

    -(void)deleteButtonPressed:(int)tag
{
    NSLog(@"Button Pressed");
    NSLog(@"%i", tag);


}

---

事件处理程序本身不传递标记，而是传递整个按钮：

UIButton *deleteButton  = [[UIButton alloc]initWithFrame:CGRectMake(230, dateLabel.frame.origin.y, 70, 27)];
[deleteButton addTarget:self action:@selector(deleteButtonPressed:) forControlEvents:UIControlEventTouchDown];
[deleteButton setBackgroundImage:[UIImage imageNamed:@"delete.jpg"] forState:UIControlStateNormal];
[deleteButton setTag:i];

现在，您可以从传递进来的按钮中获取标签，如下所示：

-(void)deleteButtonPressed:(UIButton*)button {
    NSLog(@"Button Pressed, tag=%i", button.tag);
}

---

事件处理程序本身不传递标记，而是传递整个按钮：

UIButton *deleteButton  = [[UIButton alloc]initWithFrame:CGRectMake(230, dateLabel.frame.origin.y, 70, 27)];
[deleteButton addTarget:self action:@selector(deleteButtonPressed:) forControlEvents:UIControlEventTouchDown];
[deleteButton setBackgroundImage:[UIImage imageNamed:@"delete.jpg"] forState:UIControlStateNormal];
[deleteButton setTag:i];

现在，您可以从传递进来的按钮中获取标签，如下所示：

-(void)deleteButtonPressed:(UIButton*)button {
    NSLog(@"Button Pressed, tag=%i", button.tag);
}

---

不能在@selector中传递参数。应该是@selector（deleteButtonPressed:）

然后在动作方法中：

    -(void)deleteButtonPressed:(UIButton *) sender
{
    NSLog(@"Button Pressed");
    NSLog(@"%d", sender.tag);


}

---

不能在@selector中传递参数。应该是@selector（deleteButtonPressed:）

然后在动作方法中：

    -(void)deleteButtonPressed:(UIButton *) sender
{
    NSLog(@"Button Pressed");
    NSLog(@"%d", sender.tag);


}