public GameObject sp_20;
    void Update () {

        if (Input.GetMouseButtonDown(0))
        {
            OnArrange(20);
        }
    }
    /*
    100--0.3  100放大了的本地坐标  0.3世界坐标
    200--0.6
    300--0.8
    400--1.1
    500--1.4
    600--1.7
    700--1.9
    800--2.2
    900--2.5
   1000--2.8
   1050--2.9
   1080--3.0
    */
    public void OnArrange(int num) {

        for (int i = 0; i < num; i++)
        {
            /*  GameObject go = GameObject.Instantiate(sp_20, new Vector3(0, 10, 0), Quaternion.identity) as GameObject;
       go.transform.SetParent(transform);
       go.transform.localScale = Vector3.one;
       go.transform.localPosition = new Vector3(300, 0, 0);
       Debug.Log(go.transform.position);//世界坐标
       Debug.Log(go);*/

            if (i <15)
            {
                GameObject goes = GameObject.Instantiate(sp_20, new Vector3(0, 55, 0), Quaternion.identity) as GameObject;
                goes.transform.SetParent(transform);
                goes.transform.localScale = Vector3.one;
                goes.transform.localPosition = new Vector3(490-35 * i, 55, 0);
            }
            else
            {
                GameObject goes = GameObject.Instantiate(sp_20, new Vector3(0, 55, 0), Quaternion.identity) as GameObject;
                goes.transform.SetParent(transform);
                goes.transform.localScale = Vector3.one;
                goes.transform.localPosition = new Vector3(490-35 * 15, 55, 0);

                goes.transform.localPosition = new Vector3(490-35 * (i - 15), 20, 0);
            }
        }
    }