Response.Filter属性：在数据发送出去前通过绑定的Filter来修改HTTP实体数据
应用场景（网站内容的GZIP压缩，多语言实现等等。。。）
定义：public Stream Filter{get;set;}
例如，实现网页压缩传输：
C#代码
- string str = Request.Headers.Get("Accept-Encoding");
- if (str != null)
- {
- Stream filter = Response.Filter;
- str = str.ToLower();
- if (str.Contains("gzip"))
- {
- Response.Filter = new GZipStream(filter, CompressionMode.Compress);
- Response.AppendHeader("Content-Encoding", "gzip");
- }
- else if (str.Contains("deflate"))
- {
- Response.Filter = new DeflateStream(filter, CompressionMode.Compress);
- Response.AppendHeader("Content-Encoding", "deflate");
- }
- }
三原色摘自 http://www.aspstat.com/112
