Unity3d通过鼠标缩放查看和旋转物体

1.通过鼠标缩放查看，键盘移动查看

using UnityEngine;
using System.Collections;

namespace DigitalRuby.Earth
{
    public class MoveScript : MonoBehaviour
    {
        public float Speed = 10.0f;

        private void Start()
        {

        }

        private void Update()
        {
   
			if (Input.GetAxis("Mouse ScrollWheel") <0)
			{			
				if(Camera.main.fieldOfView<=100)  
					Camera.main.fieldOfView +=2;  
				if(Camera.main.orthographicSize<=20)  
					Camera.main.orthographicSize +=0.5F;  
			}
			//Zoom in
			if (Input.GetAxis("Mouse ScrollWheel") > 0)
			{
				if(Camera.main.fieldOfView>2)  
					Camera.main.fieldOfView-=2;  
				if(Camera.main.orthographicSize>=1)  
					Camera.main.orthographicSize-=0.5F;  
			}

        }
    }
}

2.通过鼠标旋转物体

using UnityEngine;
using System.Collections;

public class MoveSphereScript : MonoBehaviour {

	private float speed = 100.0f;
	// Use this for initialization
	void Start () {
	
	}
	
	// Update is called once per frame
	void Update () {
		float x = 0, y = 0;
		if(Input.GetMouseButton(0))
		{
			//鼠标按着左键移动 
			y = Input.GetAxis("Mouse X") * Time.deltaTime * speed;
			x = Input.GetAxis("Mouse Y") * Time.deltaTime * speed; 
		}

		Debug.Log(x + ", " + y);
		//旋转角度（增加）
		transform.Rotate(new Vector3(x,-y,0),Space.World);
	}
}