文件名称:Symbol
- 所属分类：
- C#编程
- 资源属性：
- [Windows] [Visual.Net] [Basic/ASP] [源码]
- 上传时间：
- 2012-11-26
- 文件大小：
- 5kb
- 下载次数：
- 0次
- 提 供 者：
- rapo****
- 相关连接：
- 无
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In C#, sometimes you would like to define a base class, or a library, that uses an enumeration, and you would like to allow derived classes or users of your library to define new values for it. Trouble is, enums are not extensible: a derived class or user code cannot define new values.
For instance, one time, I wrote a library for serializing and deserializing "shapes" with geographic coordinates to a text file. In this library, several different shapes were supported: circles, rectangles, lines, polygons, and so on.
For instance, one time, I wrote a library for serializing and deserializing "shapes" with geographic coordinates to a text file. In this library, several different shapes were supported: circles, rectangles, lines, polygons, and so on.
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Symbol.cs