Unity倒计时

 1     public Text CountDownTxt;
 2     DateTime endTime = DateTime.Parse("2020-10-24");
 3     public float timer = 1f;  //刷新频率
 4     float time = 0;
 5     double totalSeconds = 0;
 6     private void Update()
 7     {
 8         if (time<timer)
 9         {
10             time += Time.unscaledDeltaTime;
11         }
12         else
13         {
14             time = 0;
15             Countdown();
16         }
17     }
18     void Countdown()
19     {
20         totalSeconds = (endTime - DateTime.Now).TotalSeconds;
21         CountDownTxt.text = (totalSeconds / 3600).ToString("D2") + ":" + (totalSeconds % 3600 / 60).ToString("D2") + ":" + (totalSeconds % 60).ToString("D2");
22     }