Unity朝向某个物体（星体围绕太阳旋转)

方式一：

public Transform target;

void Update () { 
transform.LookAt(target);
}

方式二：

    public Transform target;
void Update () {
Vector3 relativePos = target.position - transform.position;
transform.rotation = Quaternion.LookRotation(relativePos);
}

例子：星体围绕太阳旋转：

    public Transform target;void Update () {Vector3 relativePos = (target.position + new Vector3(0, 1.5f, 0)) - transform.position;Quaternion rotation = Quaternion.LookRotation(relativePos);Quaternion current = transform.localRotation;transform.localRotation = Quaternion.Slerp(current, rotation, Time.deltaTime);transform.Translate(0, 0, 3 * Time.deltaTime);}