判断两点的角度

    void Update()
    {
        Vector3 p1 = transform.position;
        Vector3 p2 = target.position;
        double angleOfLine = Mathf.Atan2((p2.z - p1.z), (p2.x - p1.x)) * 180 / Mathf.PI;//计算两点的正切值并获取角度
        Debug.Log(angleOfLine);
    }