入门演示ruby运用，如何设置windows窗口模式，同时演示如何简单调用windows的api实现快速功能（注意执行先装ruby解释器，脚本语言不用编译）-Demonstration of the use of entry-ruby, how to set up windows window mode, at the same time demonstrate how simple api call windows of the fast function (attention to the implementation of the first loaded ruby interpreter, scr ipting languages do not compile)