Unity3D第二课之通过键盘、鼠标移动物体

public class xuanzhuan : MonoBehaviour {

    //平移速度变量
    public float MoveSpeed;// Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {
//键盘判断
        if(Input.GetKey(KeyCode.A)){
            transform.Translate(Vector3.left* MoveSpeed,Space.World);
        }
        if(Input.GetKey(KeyCode.D)){
            transform.Translate(Vector3.right* MoveSpeed,Space.World);
        }
        if(Input.GetKey(KeyCode.W)){
            transform.Translate(Vector3.up* MoveSpeed,Space.World);
        }
        if(Input.GetKey(KeyCode.S)){
            transform.Translate(Vector3.down* MoveSpeed,Space.World);
        }

        //鼠标判断
        if(Input.GetMouseButton()){
            transform.Rotate(Vector3.down* MoveSpeed,Space.World);
        }
        //鼠标判断
        if(Input.GetMouseButton()){
            transform.Rotate(Vector3.up* MoveSpeed,Space.World);
        }

        //滚轮放大缩小
        //Zoom out
        if (Input.GetAxis("Mouse ScrollWheel") <)
        {
            if(Camera.main.fieldOfView<=)
                Camera.main.fieldOfView +=;
            if(Camera.main.orthographicSize<=)
                Camera.main.orthographicSize +=0.5F;
        }
        //Zoom in
        if (Input.GetAxis("Mouse ScrollWheel") > )
        {
            if(Camera.main.fieldOfView>)
                Camera.main.fieldOfView-=;
            if(Camera.main.orthographicSize>=)
                Camera.main.orthographicSize-=0.5F;
        }

    }
}