RT，具体的模板可用：

public class MyClass : MonoBehaviour {
   private static MyClass s_Instance = null; public static MyClass instance     {
   get         {
   if (s_Instance == null)             {
                   s_Instance = FindObjectOfType(typeof(MyClass)) as MyClass; if (s_Instance == null && (Application.isEditor && !Application.isPlaying))                {
                       GameObject o = new GameObject();                     o.name = "MyClass Object";                     s_Instance = (MyClass)o.AddComponent(typeof(MyClass));                 }             } return s_Instance;         }     } // any other methods     .... }