距离某一天还有多久,简单的小例子.

using UnityEngine;

using System.Collections;

using System;

public class test : MonoBehaviour {

    DateTime dt1;

    DateTime dt2;

    TimeSpan ts;

    public GameObject mObj;

    private UILabel mLab;

	// Use this for initialization

	void Start () {

	 dt2 = new DateTime(2014,1,18);

     mLab = mObj.GetComponent<UILabel>();

	}

	// Update is called once per frame

	void Update () {

		dt1 = DateTime.Now;

		ts = dt1.Subtract(dt2);

        mLab.text = ts.ToString();

    	Debug.Log(ts);

	}

}