c# – System.Drawing.Image和System.Drawing.Bitmap有什么区别

System.Drawing.Bitmap : System.Drawing.Image
{ }

图像是一个抽象类,这意味着：

The abstract modifier indicates that the thing being modified has a missing or incomplete implementation.

位图是一个密封类,这意味着：

When applied to a class,the sealed modifier prevents other classes from inheriting from it.

请参阅以下内容：

Bitmap bmp = new Bitmap(filename); // Works
Image img = new Image(); // The compiler says: "Cannot access internal constructer 'Image' here.

这是因为Image不是以这种方式使用的.
它只为Bitmap类提供功能.

因此总是使用Bitmap而不是Image.