/// <summary>
/// 返回指定JSON转成的字典
/// </summary>
/// <param name="json">JSON</param>
/// <returns>Dictionary`[string, object]</returns>
public static Dictionary<string, object> SelectDictionary(string json)
{
JavaScriptSerializer serializer = new JavaScriptSerializer();
return serializer.Deserialize<Dictionary<string, object>>(json);
}