1.判断VideoPlayer是否播放完毕
if(videoPlayer.frame== ((long)videoPlayer.frameCount-1))
{//...}
2.寻找挂有X.cs的隐藏子物体
GetComponentInChildren<X>(true);
if(videoPlayer.frame== ((long)videoPlayer.frameCount-1))
{//...}
GetComponentInChildren<X>(true);