Erlang Primer (1) Mac OS X 上配置 Erlang 开发环境

Erlang Primer (1) Mac OS X 上配置 Erlang 开发环境

• Author: 柳大·Poechant（钟超）
• Email: zhongchao.ustc#gmail.com (# -> @)
• Blog: Blog.youkuaiyun.com/Poechant
• Date: May 13^th, 2012

Install

$ ./configure
$ make
$ sudo make install

Start

$ erl
Erlang R15B01 (erts-5.9.1) [source] [smp:4:4] [async-threads:0] [hipe] [kernel-poll:false]

Eshell V5.9.1  (abort with ^G)
1>3+4.
7
2>3*4.
12
3>hello.
hello

Factorial numbers

-module(test).
-export([fac/1]).

fac(0) -> 1;
fac(N) -> N * fac(N - 1).

Try to run it:

$ erl
Erlang R15B01 (erts-5.9.1) [source] [smp:4:4] [async-threads:0] [hipe] [kernel-poll:false]

Eshell V5.9.1  (abort with ^G)
1> c(test)
1> .
{ok,test}
2> test:fac(20).
2432902008176640000
3> test:fac(40).
815915283247897734345611269596115894272000000000

Reference

1. http://imata.cn/mypost/43.htm
2. http://www.erlang.org/static/getting_started_quickly.html

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