Csharp 在游戏视图中使用wsad键进行摄像机运动时，为什么摄像机会以对角方向移动

我的意思是，当按W键的时候，S，A，D，比方说，按W键，而不是让相机直线向上移动，它同时向上和向左移动.对于所有其他关键点，它同时向两个方向移动.

我正在从更新中调用该方法

private void HandleCameraMovement()
    {
        float horizontal = Input.GetAxis("Horizontal");
        float vertical = Input.GetAxis("Vertical");

        Vector3 moveDirection = new Vector3(horizontal, 0f, vertical);
        moveDirection.Normalize();

        transform.Translate(moveDirection * cameraMoveSpeed * Time.deltaTime, Space.World);
    }

我以前也试过了，但结果是一样的:

private void HandleCameraMovement()
    {
        float horizontal = Input.GetAxis("Horizontal");
        float vertical = Input.GetAxis("Vertical");

        Vector3 moveDirection = new Vector3(horizontal, 0f, vertical).normalized * cameraMoveSpeed;
        transform.Translate(moveDirection * Time.deltaTime, Space.World);
    }

还有这个:

private void HandleCameraMovement()
    {
        float horizontal = Input.GetAxis("Horizontal");
        float vertical = Input.GetAxis("Vertical");

        Vector3 moveDirection = new Vector3(horizontal, 0f, vertical) * cameraMoveSpeed;
        transform.Translate(moveDirection * Time.deltaTime, Space.World);
    }