一个小程序，由树形控件实现类似资源管理器的基本功能。查看本地磁盘的内容-A small program similar to the tree controls to achieve the basic functions of Explorer. View the contents of the local disk

该文档制作了两种形式的树目录小程序，一种是模拟资源管理器的，一种是模拟浏览框的，内容都比较简单，但适合初学者学习-The document produced two forms of the directory tree applet, one is analog Explorer, a browser is a simulation box, the contents are relatively simple, but for beginners to learn