Random.rotation 旋转角度

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	public GameObject prefab;
	public void Awake() {
		Instantiate(prefab, Vector3.zero, Random.rotation);
	}
}

// Instantiates a prefab with a random rotation at the world-origin
//实例化一个预设，并带有随机旋转，在世界原点

var prefab : GameObject;
Instantiate(prefab, Vector3.zero, Random.rotation);