Unity3d Ugui's Homemade timer (ii)

Use unity3d5.0 +ugui to make a useful game timer

First, the source code

[CSharp]  View plain copy print?  <summary>  ///  time:2014-4-8  ///  author:gwl  ///  Description: This class is used to handle timing functions, including timing start, pause function   /// </summary>   using unityengine;    using system.collections;   using unityengine.ui;      public  class timer : monobehaviour {             Total time of   public float time_all = 300;//timing (in seconds)         public float time_left;//Time remaining        public bool ispausetime  = false;       public Text time;        // Use this for initialization       void  start  ()  {           time_left = time_all;       }               // Update is called once per frame        void Update  ()  {           if (! Ispausetime) {               if (time_Left  > 0)                     starttimer ();           }                   }        /// <summary>       ///  Start Timing          /// </summary>       void starttimer () {           time_left -= time.deltatime;            time.text = GetTime  (time_left);                   }       ///  <summary>       ///continue the game, this is temporarily added here, later code refactoring when added in Uicontrol          /// </summary>       public void  continuegame () {              isPauseTime  = false;           Time.timeScale  = 1;        }          /// <summary>        ///  Pause Timings        /// </summary>    &nbsP;   public void pausetimer () {            isPauseTime = true;             time.timescale = 0;       }       ///  <summary>