一个简单的类似摇奖的程序，用QT编写的，可以让多张图片随机切换，点击暂停后图片亦即停止。用QT来学习如何操作图片的可以参考。-A simple procedure similar to lottery, written using QT, allowing multiple pictures random switching, click on picture that is stopped after a pause. With QT to learn how to manipulate im