有三个盒子可以抽奖。每次只能抽其中一个（即鼠标点哪个就是抽哪个）有三种不同奖品。我现在做的是抽1号盒子就是1号奖品，2号盒子就是2号奖品（即盒子就是按钮，点中后跳转到指定帧。但我要的效果是抽1号盒子，随机出来1-3号奖品。-There are three boxes to draw. Only drawn one time (ie click of the mouse which is pumping which) there are three different prizes. I am n