_TitleimageView.layer.masksToBounds = YES;
//设置圆角;当值为正方形图片视图的宽度一半时,就为圆形
_TitleimageView.layer.cornerRadius = _TitleimageView.frame.size.width / 2.0;
_TitleimageView.layer.masksToBounds = YES;
//设置圆角;当值为正方形图片视图的宽度一半时,就为圆形
_TitleimageView.layer.cornerRadius = _TitleimageView.frame.size.width / 2.0;