transform.position += Vector3.up * Time.deltaTime;

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
void Awake() {
transform.position += Vector3.up * Time.deltaTime;
}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

def Awake():
transform.position += (Vector3.up * Time.deltaTime)