unity3d 4.3 changing Spriterender's sprite dynamically through code

http://www.unitymanual.com/home.php?mod=space&uid=2452&do=blog&id=420

usingUnityengine;usingSystem.Collections; Public classTestsprite:monobehaviour { PublicSprite Spritea;  Publictexture2d Tex; //Use this for initialization    voidStart () {Tex= Resources.load ("Enter") astexture2d; //Create (source resource, the rectangle corresponding to the sprite, corresponding to the center point coordinate of the sprite)Spritea = Sprite.create (Tex,NewRect (171,0,171, the),NewVector2 (0.5f,0.5f)); Gameobject.getcomponent<SpriteRenderer> (). Sprite =Spritea; }        //Update is called once per frame    voidUpdate () {}}

unity3d 4.3 changing Spriterender's sprite dynamically through code