这是我在学习java SE I/O时写的小段子。主要实现以树形方式展现出该目录中的所有子目录和文件。 另外， 在展现的时候将目录排在上面，文件排在下面。每一层要加上缩进。 文件是jre6文件夹，我想这文件夹就不用我说什么了。换上自己的文件路径就可以了。新手上路，只希望打好基础。望有大家多多指点！-This is my learning java SE I/O when writing small pieces. The main achievement to show the way out of the directory tree of all the subdirectories and files. In addition, when the show came in the directory above the file came in below. Each layer to add indentation. File is the jre6 folder, I think this folder I would not say anything. Put your own file path can be. Newbie, just want to lay the foundation. Hope there is a lot of pointing!