Programming language (2)

Programming language （ One ）_ Xiao Feng's blog -CSDN Blog

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Four 、 Programming language system

The difference between compiler and interpreter

• explain ： The interpreter directly interprets and executes the source language program , No object program is generated （ amount to “ oral interpretation ”）
• compile ： After compiling the source program into the machine language object program , And then run by a computer （ amount to “ written translation ”）

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5、 ... and 、 Common programming languages

The development of high-level programming languages

• 50 years ：Fortran,ALGOL
• 60 years ：COBOL Language ,BASIC Language
• 70 years ：Pascal Language ,C Language
• 80 years ： Ada Language ,PROLOG Language ,LISP Language
• 90 s ： Object oriented language C++、 JAVA、C# etc.

（ One ）FORTRAN Language

FORTRAN yes FORmula TRANslation （ Formula translation ） Abbreviation for , It is mainly used for Numerically Process oriented Programming language .FORTRAN Language is characterized by Close to the mathematical formula , Simple and easy to use

（ Two ）BASIC and Visual Basic Language 、VBA、VBScript

• BASIC Language is easy to learn
• It's a kind of Visual 、 Object oriented 、 Structured in an event driven way High level programming language
• VBA、VBScript yes VB Subset

Information ：VBA and VBScript

• VBA（Visual Basic for Application）

1. VB Subset , Included in Office Software （ Such as Word、Excel、Access、Power Point） in
2. purpose ： Expand Office The function of the software
3. characteristic ： Parasitic on existing applications （ Such as Word）, No additional development environment is required , also Can't generate .exe file , The program developed （ be called “ macro ”） It must be called by its host program to run

• VBScript Language

1. It's also VB Subset , Embedded in the HTML In the document Use
2. The script program can expand the function of the web page , for example ：
3. Dynamically modify the content of web pages and control the presentation of documents
4. Check whether the input information of the user is correct

（ 3、 ... and ）Java Language

• from SUN  Microsystem The company 1995 Released in Object oriented 、 For network environment Programming language
• basic feature ：

1. Apply to Network distribution environment
2. Have a certain Platform independence
3. Good safety and stability

• Application, for example, ：    

1. Cross platform applet downloaded from the network to run in the browser Java applets
2. Portable digital devices ( Such as mobile phone ) Applications in

（ Four ） C Language 、C++ and C# Language

• C Language is 1972～1973 During the period from AT＆T company Bell Developed by the Laboratory .
• C++ Language C Based on language .
• C# It's a new kind of 、 Object oriented programing language , Developed by Microsoft .

（ 5、 ... and ）Python Language

A high-level combination of explanatory 、 Compilability 、 Interactive and object-oriented scripting language .

（ 6、 ... and ） Other programming languages

Sum up ： Common programming languages

• Fortran( Process oriented 、 For scientific and numerical calculations ,Fortran2003 It's object-oriented )
• VB（ object-oriented 、 visualization 、 Event handling ）
• Java( object-oriented 、 For network platform 、 Can run across platforms )
• C（ Process oriented 、 General programming language 、 Suitable for developing system software 、 Efficient ）
• C++( from C Language developed from 、 object-oriented 、)
• C#（ object-oriented 、 To run on .NET platform 、 Can run across platforms 、 from C++、Java Developed from ）
• LISP（ Symbol operation and table processing 、 For artificial intelligence ）
• PROLOG（ Logical programming language 、 For artificial intelligence ）
• ADA（ Modular language 、 For real-time control 、 Concurrent multitasking, such as ： Aircraft control ）
• MATLAB（ Matrix oriented mathematical operation , Mathematical calculation ）
• COBOL（ Process oriented 、 Apply to business 、 Finance ）
• VBA（ object-oriented 、 Embedded in the OFFICE Running in software . Common macro viruses use VBA Organization ）
• Javascript and VBScript( object-oriented 、 Run embedded in web pages )