【WPF】Button按钮动态设置Background背景颜色

如果想给按钮背景设置为一张图片：

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Button btn = new Button(); ImageBrush brush = new ImageBrush(); brush.ImageSource = new BitmapImage(new Uri("Images/test.png", UriKind.Relative)); btn.Background = brush;

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1	Background = System.Windows.Media.Brushes.White，