private void SetVideoTime(string key, float st, float et)
        {
            TimeDec td = new TimeDec();

            td.keys  = key;
            td.stime = st;
            td.etime = et;
            mTimeDec.Add(td);
        }
        private void Update()
        {
            if (mLastTimeDec != null)
            {
                if (mLastTimeDec.etime < mVideoPlayer.time)
                {
                    mDec.text    = "";
                    mLastTimeDec = null;
                }
            }
            if (mLastTimeDec == null)
            {
                if (mTimeDec.Count > mCurTimeDec)
                {
                    var tt = mTimeDec[mCurTimeDec];
                    if (tt.stime <= mVideoPlayer.time)
                    {
                        mDec.text = tt.keys;
                        mCurTimeDec++;
                        mLastTimeDec = tt;
                    }
                }
            }

            if (!mSkiping)
            {
                if (Input.GetMouseButtonDown(0))
                {
                    mSkipBt.gameObject.SetActive(true);
                    mShowTime = 3;
                }
                if (mSkipBt.gameObject.activeInHierarchy && (mShowTime -= Time.deltaTime) < 0)
                {
                    mSkipBt.gameObject.SetActive(true);
                }
            }
        }