Unity uses scripting to add sub-objects to an object

First we create a cube, then we create a material ball for cube, and the color of the material ball is red. The color of the material ball to the cube,cube turns red.

Create an empty object (gameobject) named Container, as the name implies, this will be used as a container.

To write a script:

Using Unityengine;
Using System.Collections;

public class Giveparent:monobehaviour {public

    gameobject prefab;
    Use the this for initialization
    void Start () {
        Gameobject container = gameobject.find ("container");
        The first kind of
        //gameobject prefabinstance = Instantiate (prefab);
        PrefabInstance.transform.parent = Container.transform;
        The second type of
        gameobject PFB = resources.load ("Prefabs/cube") as Gameobject;
        Gameobject prefabinstance = Instantiate (PFB);
        PrefabInstance.transform.parent = Container.transform;


    }

    Update is called once per frame
    void Update () {

    }
}

The second is what I added later: The Prefab Cube was later placed under the Resource/prefabs directory

Scripts are mounted on container

Drag and drop the finished preform here

To run the program: