The extension modules let you do all sorts of things: communicate with graphics libraries, data flow libraries, and all sorts of fileformats.
这些扩展模块让你能想干什么就干什么：调用图形库、数据流库，还能操作各种数据格式。
2
The DXF file format is one of the widely used graphics exchange formats in the graphics application development, and the lots of CAD software have supported it.
DXF文件格式是图形开发中最常用的图形交换格式之一，众多CAD软件都支持它。
3
Only Tagged image File format (TIFF) and Graphics Interchange format (GIF) image formats support palettes.