该程序是一个多文档视图的程序，而且是真正的多文档，多视图。对于编写多文档视图的程序员非常有用。

该程序是一个多文档视图的程序，而且是真正的多文档，多视图。对于编写多文档视图的程序员非常有用。-The program is a multi-document view procedures, but is a genuine multi-document, multi-view. For the preparation of multi-document view programmers very useful.