文件树读入，可以读入磁盘文件。 也可以设置读取路径。载入-tree read, can be read into the disk files. Readers can also set up trails. Included

一个重载的树形控件，添加了一些新属性和接口，可以从库表中直接载入树形结构-a heavy load of tree controls, add some new attributes and interfaces from the library directly included in the table tree structure