在文档/视图结构中，用户可以在框架类的方法中嗲墉createstatic方法分割窗口。但是如何实现任意的窗口的分割呢，本例实现了这个方法-In the document/view architecture, the user can type in the fr a mework of the method createstatic satay method Shiyong partition window. But how to realize the arbitrary division o