MovePosition

获取该obj的this.transform, this.GetCompoent<Rigidbody>();

5.平台移动MovePositon();方法

private Transform m_Plate;

private Rigidbody m_plate;

private int direction=1;

public float speed=1;

void Start(){
m_Plate=this.transform;

m_plate=GetComponent<Rigidbody>();

}

void Update(){

if(m_Plate.position.x>=5&&direction>0){
direction=-1;

else if(m_Plate.position.x<=-6&&directon<0){
direction=1;

}

void FixedUpdate(){
m_Plate.MovePositon(vector3.x*speed*direction*Time.Fixeddatetime);