public IImage GetImage(string path)
{
var item = images.SingleOrDefault(x => x.GetPath() == path);
if (item == null)
{
if (path.Contains(".png"))
{
item = new PngImage(path);
}
else if (path.Contains(".gif"))
{
item = new GifImage(path);
}
images.Add(item);
}
return(item);
}
static void Main(string[] args)
{
ImageFactory image = new ImageFactory();
PngImage pngImage = image.GetImage(@"C:\user\p.png") as PngImage;
PngImage npng = image.GetImage(@"C:\user\p.png") as PngImage;
PngImage npng2 = image.GetImage(@"C:\user\pppp.png") as PngImage;
GifImage gifImage = image.GetImage(@"C:\user\123g.gif") as GifImage;
Console.WriteLine(pngImage.GetHashCode());
Console.WriteLine(npng.GetHashCode());
Console.WriteLine(npng2.GetHashCode());
Console.WriteLine(gifImage.GetHashCode());
GifImage gifImage2 = image.GetImage(@"C:\user\123g.gif") as GifImage;
Console.WriteLine(gifImage2.GetHashCode());
GifImage gifImage3 = image.GetImage(@"C:\user\1234g.gif") as GifImage;
Console.WriteLine(gifImage3.GetHashCode());
}