多文档的计事本程序，可以在窗口中打开多个计事本，一同编辑并保存。-more documents or things of this program, which can open multiple windows or this thing together and keep editing.

多文档的计事本程序，可以在窗口中打开多个计事本，一同编辑并保存。-more documents or things of this program, which can open multiple windows or this thing together and keep editing.