依赖dynamic的另一种方法是使用JSON.net捕获和解析JSON，它旨在查询JSON数据，实际上比使用dynamic

An alternative to relying on the dynamic is to capture and parse the JSON with JSON.net, it's designed for querying json data and is really much safer than using dynamic

http://json.codeplex.com/

反序列化为类:

http://dotnetbyexample.blogspot.ca/2012/02/json-deserialization-with-jsonnet-class.html