示例代码：

斐波那契 = (数) ->
    如果 数 < 2
        1
    否则
        斐波那契(数 - 2) + 斐波那契(数 - 1)

每个 索引 在 [1..16]
    console.log 斐波那契(索引)

运行示例：

bin/coffee test/demo/fibonacci.coffee

最简单的汉化方法：

从关键词开始

1） 在lexer.coffee中添加一个'if'的alias: “如果” （适用于部分关键词。in->在 较复杂：https://github.com/nobodxbodon/coffeescript/commit/1e3d7bb871cb87762521a456aab5eea3bb4e64f5）

2） 重编译咖啡：

bin/cake build

in->在 需要生成parser:

bin/cake build:parser

3） 通过测试（添加汉化版测试 ..._zh_CN.coffee）：

bin/cake test

注：开发时所有含有 中文 字符 的源码文件都改成了utf-8

        {
     }   }   {
    {   {  }  }
     }   }{  {
    {  }{  }  }                    _____       __  __
   { }{ }{  { }                   / ____|     / _|/ _|
 .- { { }  { }} -.               | |     ___ | |_| |_ ___  ___
(  { } { } { } }  )              | |    / _ \|  _|  _/ _ \/ _ \
|`-..________ ..-'|              | |___| (_) | | | ||  __/  __/
|                 |               \_____\___/|_| |_| \___|\___|
|                 ;--.
|                (__  \            _____           _       _
|                 | )  )          / ____|         (_)     | |
|                 |/  /          | (___   ___ _ __ _ _ __ | |_
|                 (  /            \___ \ / __| '__| | '_ \| __|
|                 |/              ____) | (__| |  | | |_) | |_
|                 |              |_____/ \___|_|  |_| .__/ \__|
 `-.._________..-'                                  | |
                                                    |_|

CoffeeScript is a little language that compiles into JavaScript.

Installation

If you have the node package manager, npm, installed:

npm install -g coffee-script

Leave off the -g if you don't wish to install globally. If you don't wish to use npm:

git clone https://github.com/jashkenas/coffeescript.git
sudo coffeescript/bin/cake install

Getting Started

Execute a script:

coffee /path/to/script.coffee

Compile a script:

coffee -c /path/to/script.coffee

For documentation, usage, and examples, see: http://coffeescript.org/

To suggest a feature or report a bug: http://github.com/jashkenas/coffeescript/issues

If you'd like to chat, drop by #coffeescript on Freenode IRC.

The source repository: https://github.com/jashkenas/coffeescript.git

Changelog: http://coffeescript.org/#changelog

Our lovely and talented contributors are listed here: http://github.com/jashkenas/coffeescript/contributors