========================================================================
using UnityEngine;
using System.Collections;
public class TransformFunctions : MonoBehaviour
{
public float moveSpeed = 10f;
public float turnSpeed = 50f;

void Update ()
{
if(Input.GetKey(KeyCode.UpArrow))
transform.Translate(Vector3.forward * moveSpeed * Time.deltaTime);
if(Input.GetKey(KeyCode.DownArrow))
transform.Translate(-Vector3.forward * moveSpeed * Time.deltaTime);
if(Input.GetKey(KeyCode.LeftArrow))
transform.Rotate(Vector3.up, -turnSpeed * Time.deltaTime);
if(Input.GetKey(KeyCode.RightArrow))
transform.Rotate(Vector3.up, turnSpeed * Time.deltaTime);
}
}
========================================================================
using UnityEngine;
using System.Collections;
public class ExampleClass : MonoBehaviour
{
Vector3[] T = new Vector3[4];
void Start()
{
T [0] = new Vector3 (88f, 3, -70f);
T [1] = new Vector3 (88f, 3, 60f);
T [2] = new Vector3 (-75f, 3, 60f);
T [3] = new Vector3 (-75f, 3, -70f);
  }
int aa = 0;
void Update()
{
transform.position = Vector3 .MoveTowards (transform.position,T[aa], 30*Time.deltaTime);
if(transform.position == T[aa])
aa = (aa + 1)% 4;
transform.Rotate (Vector3.up, 100f*Time.deltaTime);
}
}