gistfile1.cs

using UnityEngine;
using System.Collections;

public class studyScript : MonoBehaviour {
		Test test;
	// Use this for initialization
	void Start () {
	
	}
	
	// Update is called once per frame
	void Update () {
				if (Input.GetKey (KeyCode.A)) {
						GameObject go = GameObject.Find ("Cube") as GameObject;
						//他のスクリプトにメソッドを実行させる
						go.GetComponent<cubeScript> ().bigsize ();
				}

				if (Input.GetKey (KeyCode.B)) {
				    //他のオブジェクトのメソッドを使い対場合はインスタンスを作って実行
						test = new Test ();
						test.makeBigMyself (gameObject);
				}
	}
}