给UIImageView添加点击事件

        UIImageView *imageview1 = [[UIImageView alloc] initWithFrame:CGRectMake(125, 50, 229, 229)];        [imageview1 setImage:[UIImage imageWithContentsOfFile:path]];        imageview1.userInteractionEnabled = YES;        UITapGestureRecognizer *singleTap1 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(buttonpress1:)];        [imageview1 addGestureRecognizer:singleTap1];        [singleTap1 release];        [myScrollView addSubview:imageview1];        [imageview1 release];