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The Erlang Shell
2008-01-02 15:37:20
/ 个人分类：开源开发类
Most operating systems have a
command interpreter or shell, Unix and
Linux have many,
Windows has the
Command Prompt. Erlang has its own shell where you can directly write
bits of Erlang code and evaluate (run) them to see what happens. Start
the Erlang shell (in Linux or UNIX) by starting a shell or command
interpreter in your operating system and typing erl, you will see
something.
tut.erl
code--start
-module(tut).
-export([double/1]).
double(X) ->
2 * X.
code--end
fuqiang@fuqiang-laptop:~$ erl
Erlang (BEAM) emulator version 5.5.5 [source] [async-threads:0] [kernel-poll:false]
Eshell V5.5.5 (abort with ^G)
1> c(tut).
{ok,tut}
2> tut:double(10).
20
3>
ubuntu 7.10
c(tut).--->{ok,tut}代表编译成功；
tut:double(10).－－－＞调用tut中的double;
erlang源文件*.erl.
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