先說一下功能：

要求點選按鈕，控制物體在X軸，Y軸，Z軸緩動旋轉指定的角度（世界軸）；
網上關於物體旋轉的方法非常多，但大都是單一軸旋轉，或指定的角度旋轉比如：（Vector3.up 或（0,90,0））；
由於旋轉的坑太多，會發現將程式碼套用在我們的需求下後產生一種問題，即在單一軸旋轉時其他兩個軸的旋轉角度為0時則旋轉無誤，如果有一個軸的旋轉角度不為0時，旋轉很容易出現問題。
請教了一個大佬有一下程式碼奉上，親測可用；

public Transform target;

	public Button xPositive;
	public Button xNegative;

	public Button
 
 yPositive;
	public Button yNegative;

	public Button zPositive;
	public Button zNegative;

	public float speed;

	private Vector3 _axis;
	private int _angle;
	private float _percent; // [0,1]

	private void Start()
	{
		xPositive.onClick.AddListener(() => { if (_percent >= 1f) { _percent = 0f; _axis =
 
 Vector3.right; _angle = 90; } });
		xNegative.onClick.AddListener(() => { if (_percent >= 1f) { _percent = 0f; _axis = Vector3.right; _angle = -90; } });
		yPositive.onClick.AddListener(() => { if (_percent >= 1f) { _percent = 0f; _axis = Vector3.up; _angle = 90; } });
		yNegative.onClick.AddListener
 
(() => { if (_percent >= 1f) { _percent = 0f; _axis = Vector3.up; _angle = -90; } });
		zPositive.onClick.AddListener(() => { if (_percent >= 1f) { _percent = 0f; _axis = Vector3.forward; _angle = 90; } });
		zNegative.onClick.AddListener(() => { if (_percent >= 1f) { _percent = 0f; _axis = Vector3.forward; _angle = -90; } });
	}

	private void Update()
	{
		if (_percent < 1f)
		{
			float delta = speed * Time.deltaTime;
			_percent += delta;

			float tmp = _percent - 1f;
			if (tmp > 0)
			{
				delta -= tmp;
			}


			target.Rotate(_axis, _angle * delta,Space.World);
		}
	}