private void OnCollisionEnter2D(Collision2D collision)
    {
        if (collision.transform.tag == "wall")
        {
            meteoritePointScript.RemoveMeteor(gameObject);
        }

        if (isDie == true)
        {
            meteoritePointScript.RemoveMeteor(gameObject);
        }
    }
 // 陨石碰撞地球后销毁,造成伤害
 private void OnCollisionEnter2D(Collision2D collision)
 {
     if (collision.transform.tag == "Meteor")
     {
         if (!meteoritePointScript.invincibl)
         {
             health -= (int)collision.gameObject.GetComponent <MeteorScript>().flintiness;
         }
         meteoritePointScript.RemoveMeteor(collision.gameObject);
         Debug.Log(health);
     }
 }