C#为菜单增加历史记录功能，会列出最近打开的文件记录，就像Word里面“最近打开的文档”那种功能，是提升软件体验的一个小技巧，添加此项功能并不复杂，本源码就是一个很好的例子-C# for the menu to increase the history function, lists documented recently opened, like Word which "recently opened documents" that function is to enhance the sof