值得注意的是，模型要于代码的方向和轴向一致，多多改几次就能调整合适的了。

制作空物体，放在飞机模型合适的位置

using UnityEngine;
using System.Collections;public class FlyTest : MonoBehaviour {public GameObject box;private Transform Head;private Transform LeftAirfoil;private Transform RightArifoil;private Transform LeftTailAirfoil;private Transform RightTailAirfoil;private float speed = 250.0f;private Rigidbody rb;void Start(){box = GameObject.Find("Plane");Head = transform.Find("Head");LeftAirfoil = transform.Find("LeftAirfoil");RightArifoil = transform.Find("RightAirfoil");LeftTailAirfoil = transform.Find("LeftTailAirfoil");RightTailAirfoil = transform.Find("RightTailAirfoil");rb = GetComponent<Rigidbody>();}void FixedUpdate(){transform.Translate(Vector3.right * Time.deltaTime);//俯冲if(Input .GetKey (KeyCode.W )){rb.AddForceAtPosition(transform.up * 5.0f, LeftTailAirfoil.position);rb.AddForceAtPosition(transform.up * 5.0f, RightTailAirfoil.position);}//爬升else if(Input .GetKey (KeyCode .S )){rb.AddForceAtPosition(transform.up * -5.0f, LeftTailAirfoil.position);rb.AddForceAtPosition(transform.up * -5.0f, RightTailAirfoil.position);}//左翻滚else if(Input .GetKey (KeyCode .A )){rb.AddForceAtPosition(transform.up * -5.0f, LeftTailAirfoil.position);rb.AddForceAtPosition(transform.up * 5.0f, RightTailAirfoil.position);}//右翻滚else if(Input .GetKey (KeyCode .D )){rb.AddForceAtPosition(transform.up * 5.0f, LeftTailAirfoil.position);rb.AddForceAtPosition(transform.up * -5.0f, RightTailAirfoil.position);}}
}