说明：  Delphi图片显示效果集，比如让一张图片由中心到四周、四周到中心、左上到右下、左下到右上、右上到左下、中间到两边、两边到中间清屏。这些图片切入方式真的很有用，特别是在制作一些与图片有关的软件的时候。
(Delphi picture shows a set of effects, such as a picture to four weeks, four weeks from the center to the center, the upper left to the lower right to the upper right, lower left, upper right to lower left, in the middle to both sides, both sides to the middle of the screen is cleared. These pictures cut way is really useful, especially in the production of pictures related software.)