HR recruitment IT knowledge science: common development languages
Introduction: There are many development languages and technologies in the IT industry. These languages have unique functions and advantages in their respective fields. As IT HR, we do not need to know every development language and technology, but to be more professional, we need to understand these languages. Technology has a "conceptual awareness". Here is a summary of the development languages commonly used in the IT industry, so as to learn together. In addition, since I am not a developer, I understand and explain these positions from the perspective of recruitment. The expression will definitely not be too professional or too rigorous, and I will try to discuss and learn with everyone in an easy-to-understand way. It is inaccurate. I hope for understanding, and also ask professionals to correct me a lot.
C++
Both C and C++ are C-based languages and are currently the most popular programming languages. C is often used as a programming language for systems and applications, such as applications for embedded systems. The C++ language is an enhancement of C, which quickly became one of the most popular languages among developers after its appearance. It is used to develop system software, application software, device drivers, embedded software, high-performance server and client applications and entertainment software such as video games.
JAVA
I believe that anyone who knows a little about programming will have heard of Java, and it is no exaggeration to say that it is the most popular programming language. And with the development of mobile and big data, Hadoop based on Java is developing rapidly, which is more difficult for Java programmers to find. It can be used in a variety of areas, including enterprise applications and infrastructure, as well as web application and mobile development. Java development is divided into three basic directions (more detailed later): JAVAEE (J2EE enterprise-level web development), JAVASE (J2SE desktop application and C/S mode development), JAVAME (J2ME mobile and embedded development).
C#/.NET
C# is an object-oriented high-level programming language released by Microsoft and running on the .NET Framework. C# is a language developed by Microsoft to replace Java, and draws on some features of Java, C, C++ and Delphi. Now C# has become a very popular development language for Microsoft application store and development members.
PHP
PHP is a general-purpose open source scripting language, especially suitable for Web development, can be embedded in HTML, it was originally used to design dynamic web pages. The grammar absorbs the characteristics of C language, Java and Perl, and the entry threshold is low and easy to learn. In recent years, good php development has become a sweet pastry.
PYTHON
Python is a dynamic language used to design a wide variety of applications and is often easier to write than Tcl, Perl, Ruby, Scheme and Java. Python syntax is concise and clear, with a rich and powerful class library. It is often nicknamed the glue language. It can easily link various modules (especially C/C++) made in other languages together, and its functions are relatively powerful. It is used in big data, data mining, server development. All have applications.
RUBY
Ruby is a dynamic, simple, efficient, and efficient open source language. It has an elegant syntax, can be read and written naturally, and is suitable for rapid development. Generally, the development efficiency is 5 times that of JAVA. The rise of tuby is not enough, and the current demand is relatively large. 2-3 years of ruby should not worry about finding a job.
Objective-C
ios system development language, Objective-C for Apple system. For netizens who love Apple devices, the popularity of Objective-C benefits from the success of Apple, which adds Smalltalk-style messages in the C programming language. Reflection, an object-oriented language. Mainly used in Apple system and GNUstep, two standard systems using OpenStep. With the huge popularity of the Apple platform, the Objective-C language is now gradually known by people.
JAVASCRIPT
The front-end development language of websites, JavaScript has a very large demand in web applications. The main purpose is to solve the speed problem left by server-side languages, such as Perl, and provide customers with a smoother browsing effect. JavaScript is primarily used to implement as web browsers to provide enhanced user interfaces and dynamic websites.
HTML /HTML5
The front-end development language for websites, HTML is the standard language used to build the core technology of the Internet for presenting content on the Web. HTML5 is the fifth revision of the HTML standard. It is mainly used in mobile front-end development. Today, HTML5 continues to play an important role in the field of mobile development. , 37% of developers rely on HTML5 to develop mobile websites and web applications.
CSS
Web site front-end development language, CSS is a computer language used to express the style of documents such as HTML) or XML. Most commonly used for web styling and HTML and Xhtml interfaces, the language can be applied to any type of XML document. CSS is primarily designed to enable the separation of document content from document presentation, including elements such as layout, colors, and fonts. JS, HTML, CSS constitute the three Musketeers of front-end development.