C# Color字符串互相转换

var colorStr= Color.Red.ToArgb().ToString();

 /// <summary>
 /// Argb字符串转颜色Color实例
 /// </summary>
 /// <param name="attr"></param>
 /// <returns></returns>
 public static Color GetColor(this XmlNode attr)
 {
     if (attr == null)
     {
         return Color.Transparent;
     }
     else
     {
         var value = attr.Value;
         if (int.TryParse(value, out var colorValue))
             return Color.FromArgb(colorValue);
         else
             return Color.Transparent;
     }
 }