Preface
In the last study, I had a preliminary understanding of erlang. At the beginning of this study, let us install the erlang environment, install the erlang development plugin, and run the first erlang program - Hello World!
For a new language, it is important to master the correct learning method and do more with less. This learning method includes: check the official Guide document and learn by doing.
Text
Erlang Installation
- Find the official website of Erlang and download the latest installation package.
- Install Erlang by running .exe file -> select components -> Next -> Installation Complete.
During installation, there is prompt about Microsoft Visual C++，Redistributable package, I selected ‘Repair’.
- Configure environment variables. Similar as other env configuration - add Erlang bin path in env ‘Path’.
Run ‘erl’ in cmd, confirm installation and env configuration are correct.
Erlide Installation
Erlide is an IDE for Erlang, powered by Eclipse.
Erlide official website
Find link of Erlide Installing and updating.
My Eclipse is Release 4.7.0 (Oxygen), later than required version 4.6. The Erlide installation is OK.
After Erlide installation, Eclipse can new Erlang project.
First Erlang Project
According to programming conventions, the first project of Erlang also outputs ‘Hello World’.
-
New project: File -> New -> Project -> Erlang -> Erlang Project -> Name: first_erlang_project
-
New module: Right click on src of first_erlang_project -> new module -> Module name: tut
-
Edit tut.erl file as below:
- Right click on first_erlang_project -> run as -> run configurations
Right click on Erlang application on the left -> new
Select first_erlang_project on main page on the right.
Select runtimes page -> run
- In Console, input ‘test:say()’
Summary
Erlang’s runtime and development environment is installed, and I can start learning Erlang while doing it.
Hello World will write, I feel that I have succeeded a big step.
Reference
http://www.erlang.org
https://erlide.org/articles/eclipse/index.html
https://erlide.org/articles/eclipse/120_Installing-and-updating.html
https://weiqingfei.iteye.com/blog/264684
https://www.cnblogs.com/minily/p/7398445.html
