- (void)updataTopCornerRadius {    CGRect clipRect = CGRectMake(0, 0, self.headPhotoIv.width, self.headPhotoIv.width);    UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:clipRect byRoundingCorners:UIRectCornerTopLeft|UIRectCornerTopRight cornerRadii:CGSizeMake(8, 8)];    CAShapeLayer *maskLayer = [CAShapeLayer layer];    maskLayer.frame = clipRect;    maskLayer.path = maskPath.CGPath;    self.headPhotoIv.layer.mask = maskLayer;}