IEnumerator 的等待用法

 IEnumerator StartRightLiziCard()//在下面函数的调用开始执行
    {
        yield return new WaitForSeconds(1.0f);//等待1秒针

        areas[Index].energyGun.SetActive(true);//执行

    }
    int Index = 1;
    public void playEnergyGun(int seatIndex, bool isPlay)//开始执行
    {
        if (isPlay)
        {

            if (areas[seatIndex - 1].isEnergyOver)
            {
                areas[seatIndex - 1].isEnergyOver = false;
                Index = seatIndex - 1;
                StartCoroutine("StartRightLiziCard");此处执行到上面函数的接口。。。但是同时向下面代码执行。。
                int spriteName = Convert.ToInt32(areas[seatIndex - 1].gunBarrel.GetComponent<UISprite>().spriteName);
                areas[seatIndex - 1].gunBarrel.GetComponent<UISprite>().spriteName = (spriteName + 4).ToString();
                areas[seatIndex - 1].particle.Play();

            }
        }
        else
        {
            if (!areas[seatIndex - 1].isEnergyOver)
            {
                areas[seatIndex - 1].isEnergyOver = true;
                areas[seatIndex - 1].energyGun.SetActive(false);
                int spriteName = Convert.ToInt32(areas[seatIndex - 1].gunBarrel.GetComponent<UISprite>().spriteName);

                areas[seatIndex - 1].gunBarrel.GetComponent<UISprite>().spriteName = (spriteName - 4).ToString();
                areas[seatIndex - 1].particle.Play();
            }
        }
    }

注意：相当于开启了一个子线程，但是主线程仍向下执行。