netbeans开发gwt程式的插件，如果不能上网，就可以在netbeans安装插件的目录里面选择这个安装就可以了-gwt NetBeans development program plug-in, if they can not access to the Internet can be installed in the NetBeans plug-ins directory inside the installation you can select the

实现了一个文件复制功能，有界面，用户可以选择复制的源目录和目的目录-Implements a file copy function, interface, users can choose to copy the source directory and destination directory