how to import image as sprite unity3d code example

Example 1: load an image sprite script unity

void Start()
    {
        spriteArray = Resources.LoadAll<Sprite>("BirdHeroSprite");
    }

Example 2: image.sprite unity

Image1.sprite =new Sprite;

Example 3: unity set sprite image from script

Sprite myFruit = Resources.Load("fruits_1", typeof(Sprite)) as Sprite;