Unity 鼠標拖拽旋轉物體

using UnityEngine;
public class RotateObj : MonoBehaviour
{
    private float OffsetX = 0;
    private float OffsetY = 0;
    public float speed = 6f;//旋轉速度

    void Update()
    {
        if (Input.GetMouseButton(0))
        {
            OffsetX = Input.GetAxis("Mouse X");//獲取鼠標x軸的偏移量
            OffsetY = Input.GetAxis("Mouse Y");//獲取鼠標y軸的偏移量

            transform.Rotate(new Vector3(OffsetY, -OffsetX, 0) * speed, Space.World);
        }
    }
}