transform.rotation和GetComponent<Rigidbody>().MoveRotation

同时在UPDATE和FIXED UPDATE中调整 旋转

并未出现闪，而是一直以UPDATE中的为准，可认为MoveRotation调用后在UPDATE中生效

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class NewBehaviourScript3 : MonoBehaviour {
 
    public string first = null;
 
	// Use this for initialization
	void Start () {
 
	}
 
	// Update is called once per frame
	void Update () {
 
	    if(string.IsNullOrEmpty(first))
        {
 
            first = "Update"; 
 
        }
 
        Quaternion q = Quaternion.Euler(new Vector3(0,60,0));
        transform.rotation = q;
	}
 
    void FixedUpdate()
    {
        if (string.IsNullOrEmpty(first))
        {
 
            first = "FixedUpdate";
 
        }
 
        //GetComponent<Rigidbody>().AddForce(Vector3.up);
        Quaternion q = Quaternion.Euler(new Vector3(0,30,0));
        GetComponent<Rigidbody>().MoveRotation(q);
 
    }
}