IDL学习入门：

标准数据输入输出和文件读写

快速的直接图形法与图像处理

界面构建与事件传递

自由灵活的对象图形法

envi的功能扩展与二次开发

IDL程序发布部署与汇编

-IDL learning an introduction:

Standard data input/output and documents, reading, speaking and writing

The direct graphic method with rapid image processing

Interface construction and events relay

Free flexible object graphic method

The function of the envi expansion and secondary development

IDL release deployment and assembly process