Eclipse swt包，Standard Widget Toolkit是一个开源的GUI编程框架，与AWT/Swing有相似的用处，著名的开源IDE-eclipse就是用SWT开发的。-Eclipse swt package, Standard Widget Toolkit is an open source GUI programming framework, and AWT/Swing is similar to use, well-known open source IDE-eclips

清华大学计算机系大二小学期第4次Java作业，文件目录递归读取，输出目录树-School of Computer Science Department, Tsinghua University sophomore 4th Java operations, file directory recursively read, the output directory tree