支持任意长度的四则运算：
[img]http://thinke365.iteye.com/upload/picture/pic/34495/62eed6af-1ba3-358f-a330-ad253d81e0f5.jpg[/img]

f()会释放之前绑定的变量
[img]http://thinke365.iteye.com/upload/picture/pic/34497/ab5a4a85-9587-33ef-9d64-68cf9633e213.jpg[/img]

显示当前路径和切换路径
[img]http://thinke365.iteye.com/upload/picture/pic/34501/1c2004b5-5fb2-32b9-ad60-0a32ec2ca9d7.jpg[/img]

使用Emacs编程，这里编译代码成功了。。。（Emacs的Erlang风格包，什么时候可以装一下呢，呵呵）
[img]http://thinke365.iteye.com/upload/picture/pic/34503/dbbed19e-e074-3436-b4e7-dbfbb9fc0b38.jpg[/img]

解压Distel
[img]http://thinke365.iteye.com/upload/picture/pic/34523/dabe41f6-270a-30f7-8e72-53533fafc73f.jpg[/img]

Erlang自带了emacs配置？。。。怎么也是el格式文件呢？
[img]http://thinke365.iteye.com/upload/picture/pic/34525/2d59806e-c910-38b2-b8ba-c3f016c8b612.jpg[/img]