通过让当前得分累加，直到累加至playerScore为止

“得分渐变动画（代码）”

设置变量  添加计时器 

private int currenScore;//玩家当前得分

private float addScoreTime;

if(addScoreTime<=0.05)

{

  addScoreTime+=Time.deltatime

}//计时器

else

{

   if(currentScore<playerScore)

{

  currentScore+=100;

  PlayerScoreText.text=currentScore.Tostring();//将当前分数显示出来

addScoreTime=0;//重置计时器

}

}