erlang

-- Install Erlang 1. Download Erlang source code Http://www.erlang.org/download.html 2. decompress the source code Tar-zxvf otp_src_rxxxx.tar.gz ./Configure -- prefix =/usr/local/Erlang Make make install 3. If ODBC: ODBC library-link check failed is missing, install Apt-Get install unixodbc Apt-Get install unixodbc-Dev 4. After installation, test Ln-S/usr/local/

Use and optimization suggestions of erlang list, erlanglist Erlang has two composite structures: tuple and list. The difference between the two is that the number of child elements of tuple is fixed and cannot be changed after declaration. The list is variable, you can use [H | T] to retrieve or insert new elements. In the previous article, I talked about tuple-related content. In this article, I will talk

And friends of the high concurrency, and once again involved in the Erlang,erlang from the family of Ericsson, has a very high stability of the virtual machine and Platform library, Facebook used it to implement the chat system, Amazon developed SimpleDB, The most amazing is the What ' sapp, the high concurrency of the processing mechanism is eye-catching, it is time to understand

Reprinted: http://www.cnblogs.com/me-sa/archive/2011/10/29/erlang0010.html Erlang originated from the telecom industry. Joe Armstrong mentioned the design requirements of Erlang.Software maintenance should be performed without stopping the system. In practice, we also benefited a lot from this kind of continuous service hot update, and finally we don't need to wait until there is no one in the middle of the night to update again. So how do we do hot u

Erlang is a functional programming language with immutable state The variable of Erlang is a one-time assignment variable (single-assignment variable) In Erlang, the obtained value of a variable is the result of a successful pattern matching operation, = is a pattern matching operator In Erlang, atoms are used to

Http://www.cnblogs.com/me-sa/archive/2011/07/20/erlang0006.htmlUsing tuple in Erlang, the order \ Number of data items is determined, and once the data item order is adjusted or the field is added or subtracted, it is easy to appear badmatch.At the same time some constants if hard-coded into the code, once the value changes, it is difficult to replace all reliable replacement values.These two data-plane changes, the corresponding solution in

What is Erlang?A "niche" language (ranking more than 50) A functional language (a variable can be assigned only once) A dynamic type language (the variable type is determined at runtime,CodeIt must be compiled before execution. It is different from Python and Ruby) A strong language A concurrency Oriented Language Storm in a cup (published in 《ProgramClerk, issue 9 and 10), and the large-scale multiplayer online system that easily achieve

The process--process in Erlang is lightweight, and there is no sharing between processes. Looked at a lot of information, it seems that no one said that the lightweight process is what the concept, continue to find ... Gossip does not mention, into the concurrent programming world. This article is a study note, it can be said that "Concurrent programming in ERLANG," The fifth of a brief translation. 1. The

The following views are a bit biased, but a good articleThe world is the only one we are right, the others are all wrong. We (Erlang programmers) found the crux and solved the problem correctly, and all the others (non-Erlang) looked in the wrong direction and solved the wrong problem.The question that other people around the world is trying to solve is how to make existing programs run in parallel. until 2

Exit interaction mode: Ctrl + C and then press a; halt ().The command must be followed by a break '.' to be valid.% Comment out the current code to the end of the lineCompile ERL code C (modulename) _ Represents any variableA variable can be assigned only once in its context (scope ). For help: Use Erl-man XX in bash File start format:-Module (modulename ).-Export ([funcname1/paranum,...]). A Data Type in Erlang, which starts with a lowercase letter.

Document directory Module Module Summary Description Exports Module Module Summary Description Exports Reprinted: http://agileprogrammer.blogspot.com/2006/08/erlang-abstract-form-module.html In the previous article, we briefly described the basic components of abstract form. Now let's take a look at how to use abstract form to dynamically generate and modify a module. In the first article, we explored

Label: Transferred from: http://blog.csdn.net/flyinmind/article/details/7740540 Erlang is used in the project, and MySQL is used as well. Convention, Google. However, according to the online said to do, some discrepancy, does not work, need to find their own, the following record my groping things. 1, download erlang-mysql-driver; : Https://github.com/dizzyd/erlang