[Unity]旋转

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class test : MonoBehaviour {

	// Use this for initialization
	void Start () {
		
	}
	
	// Update is called once per frame

        void Update()
        {
        Vector3 pos = Camera.main.WorldToScreenPoint(transform.position);
        Vector3 dir = Input.mousePosition - pos;
        float angle = Mathf.Atan2(dir.y, dir.x) * Mathf.Rad2Deg;
        transform.rotation = Quaternion.AngleAxis(angle, -Vector3.up);
    }
    
}