1、String轉換成Color
??????????? Color color = (Color)ColorConverter.ConvertFromString(string);
2、String轉換成Brush
??????????? BrushConverter brushConverter = new BrushConverter();
??????????? Brush brush = (Brush)brushConverter.ConvertFromString(string);
3、Color轉換成Brush
??????????? Brush brush = new SolidColorBrush(color));
4、Brush轉換成Color有兩種方法：
（1）先將Brush轉成string，再轉成Color。
??????????? Color color= (Color)ColorConverter.ConvertFromString(brush.ToString());
（2）將Brush轉成SolidColorBrush，再取Color。
??????????? Color color= ((SolidColorBrush)CadColor.Background).Color;
)
