创建时间

private string timerValue = "0:00:00";        
 // Use this for initialization    
 void Start()     {
         InvokeRepeating("TimerUpdate", 1.0f, 0.13f);
 
        timerSkin = (GUISkin)Resources.Load("TimerGUISkin");    
 }
 
 private void TimerUpdate()     {
         float minutes = Mathf.FloorToInt(Time.time / 60);         
         float seconds = Time.time % 60;
         timerValue = string.Format("{0:00}:{1:00.00}", minutes, seconds);     
}