//事件监听的问题    CGRect btn2Frame = CGRectMake(100.0, 150.0, 60.0, 44.0);    //两种不同的方式创建    UIButton *btn2 = [UIButton buttonWithType:UIButtonTypeRoundedRect];    btn2.frame =btn2Frame;    //设置Title    [btn2 setTitle:@"BTN2" forState:UIControlStateNormal];    //[btn2 setBackgroundImage:[UIImage imageNamed:@"pic.png"] forState:UIControlStateNormal];    [btn2 setBackgroundColor:[UIColor blueColor]];    [btn2 addTarget:self action:@selector(btnPressed:) forControlEvents:UIControlEventTouchUpInside];    [self.view addSubview:btn2];-(void)btnPressed:(id)sender{    UIButton* btn = (UIButton*)sender;    NSLog(@"====>name");    //    UIButton* thisBtn = (UIButton *)sender;    //    [[[UIAlertView alloc] initWithTitle:@"Button" message:[NSString stringWithFormat: @"This is button:%@ action",thisBtn] delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK", nil] show];    }

 提醒框

-(void) someButtonClicked{        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"                                                     message:@"您点击了动态按钮！"                                                    delegate:self                                           cancelButtonTitle:@"确定"                                           otherButtonTitles:@"第二项", @"第三项", nil] ;    [alert show];}