Vector3.up

static var up : Vector3

Description

Shorthand for writing Vector3(0, 1, 0).

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

using UnityEngine;
using System.Collections;

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

import UnityEngine
import System.Collections

class example(MonoBehaviour):

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