public class InAndFade : MonoBehaviour

 {

     //渐隐渐现

     public bool Show = true;

     public bool Fade = false;

     public float duration = 2.5f;

     public float timeFromStart = 0f;    //从场景加载开始经过这些时间后再发生

     //向下滑动

     public bool isSlide = true; //是否从上往下滑动

     public float offset = -1.0f;    //偏差为10

     //变色

     public bool isChangeColor = true;

     //等待

     private bool wait = true;

     void Start()

     {

         if (Show && Fade)

         {

             Fade = false;

         }

         else if (!Show && !Fade)

         {

             Show = true;

         }

     }

     IEnumerator Wait()

     {

         yield return new WaitForSeconds(timeFromStart);

     }

     void Update()

     {

         #region 变色代码

         if (isChangeColor)

         {

             Color nowColor = gameObject.GetComponent<Text>().color;

             if (nowColor.r !=  && nowColor.g !=  && nowColor.b != )

             {

                 nowColor.r--;

                 nowColor.g += 2.8f;

                 nowColor.b += 0.9f;

             }

             gameObject.GetComponent<Text>().color = nowColor;

             if (nowColor.g >=  && nowColor.g <= )

             {

                 nowColor.g--;

             }

         }

         #endregion

         #region 滑动代码

         if (isSlide)

         {

             Vector3 initialPos = gameObject.GetComponent<Transform>().position;

             float posProportion = Time.time / duration;

             Vector3 nowPos = new Vector3(initialPos.x, Mathf.Lerp(initialPos.y + offset, initialPos.y, posProportion), initialPos.z);

             gameObject.transform.position = nowPos;

         }

         #endregion

         #region 渐隐渐现代码

         if (wait)

         {

             StartCoroutine(Wait());

         }

         if (Fade)

         {

             if (Time.time > duration)

             {

                 Destroy(gameObject);

             }

             Color newColor = gameObject.GetComponent<Text>().color;

             float proportion = Time.time / duration;

             newColor.a = Mathf.Lerp(, , proportion);

             gameObject.GetComponent<Text>().color = newColor;

         }

         if (Show)

         {

             Color newColor = gameObject.GetComponent<Text>().color;

             float proportion = Time.time / duration;

             newColor.a = Mathf.Lerp(, , proportion);

             gameObject.GetComponent<Text>().color = newColor;

         }

         #endregion

     }

 }