public class SignList : //IComparable// { [JsonProperty(“faceimage”)] public string Faceimage { get; set; }

	[JsonProperty("fpersonname")]
	public string Fpersonname { get; set; }

	[JsonProperty("fsignindatetime")]
	public long Fsignindatetime { get; set; }

	[JsonProperty("forgname")]
	public string Forgname { get; set; }

	 //**public int CompareTo(SignList other)
	{
		return Fsignindatetime.CompareTo(other.Fsignindatetime);
	}**//
}
加上//****//中的程式碼即可。