如何设置自定义图像视图的属性值？

@interface CustomImageView : UIImageView

@property (nonatomic, strong) UIImage *image;
@property (nonatomic, strong) UIColor *borderColor;
@property (nonatomic, assign) CGFloat cornerRadius;

@end

@implementation CustomImageView

- (void)setImage:(UIImage *)image {
    _image = image;
    self.image = image;
}

- (void)setBorderColor:(UIColor *)borderColor {
    _borderColor = borderColor;
    self.layer.borderColor = borderColor.CGColor;
}

- (void)setCornerRadius:(CGFloat)cornerRadius {
    _cornerRadius = cornerRadius;
    self.layer.cornerRadius = cornerRadius;
    self.layer.masksToBounds = YES;
}

@end

class CustomImageView: UIImageView {
    
    var image: UIImage? {
        didSet {
            self.image = image
        }
    }
    
    var borderColor: UIColor? {
        didSet {
            self.layer.borderColor = borderColor?.cgColor
        }
    }
    
    var cornerRadius: CGFloat = 0 {
        didSet {
            self.layer.cornerRadius = cornerRadius
            self.layer.masksToBounds = true
        }
    }
}

CustomImageView *imageView = [[CustomImageView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
imageView.image = [UIImage imageNamed:@"example.png"];
imageView.borderColor = [UIColor redColor];
imageView.cornerRadius = 10.0;
[self.view addSubview:imageView];

let imageView = CustomImageView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
imageView.image = UIImage(named: "example.png")
imageView.borderColor = UIColor.red
imageView.cornerRadius = 10.0
self.view.addSubview(imageView)