Unity 调用另一个脚本数据

using UnityEngine;
using System.Collections;

public class NewBehaviourScript : MonoBehaviour {
    // Use this for initialization
    void Start ()
    {
        ScriptB b = null;
        b = GameObject.Find ("Main Camera").GetComponent<ScriptB> ();
        Debug.Log ("ScriptB‘s num_b = " + b.num_b);
    }

    // Update is called once per frame
    void Update () {
    }
}

using UnityEngine;
using System.Collections;

public class ScriptB : MonoBehaviour {
    
    public int num_b = 5;

    // Use this for initialization
    void Start () {
    }
    
    // Update is called once per frame
    void Update () {
    }
}