Understand what is a programming language in a popular way

Before learning programming languages , The first thing to know is this “ programing language ” The concept .

When I was very young , My parents taught us to talk , It also teaches us how to understand the meaning of other people's speech . After a long period of edification and self-study , We learned to speak unconsciously , At the same time, I can understand the meaning of other children , We began to ask our parents for pocket money to buy snacks and toys 、 I was bullied and told my parents ……

We are speaking Chinese , yes “ Chinese language ”, Just tell our parents what we need , Parents will be satisfied , We use it “ Chinese language ” To control parents , Let parents do what we like .

“ Chinese language ” There is a fixed format , Each Chinese character represents a different meaning , We must express... Correctly , Parents can understand what we mean . For example, let parents give us 10 Yuan for pocket money , We will say “ Mom gave me 10 Bucks! , I want to buy a car ”. If we say “10 Give me the car allowance, mom ”, perhaps “ Mom gave me 10 RMB , I would like to buy it F-22”, Mom would be surprised , I can't understand what we mean , Or understanding mistakes , Blame us .

We use the “ Language ” To control others , Let others do things for us . There are many languages , Including Chinese 、 English 、 French 、 Korean, etc , Although their vocabulary and format are different , But it can do the same thing , We can choose any language to control others .

Again , We can also pass ” Language “ To control the computer , Let computers do things for us , Such a language is called programming language （Programming Language）.

Programming languages also have fixed formats and vocabulary , We have to learn to use , To control the computer .

There are many programming languages , Commonly used C Language 、C++、Java、C#、Python、PHP、JavaScript、Go Language 、Objective-C、Swift、 Assembly language, etc , Every language has its own specialty , for example ：

programing language	Main uses
C/C++	C++ Is in C Developed on the basis of language ,C++ Contains C All the content of the language ,C Language is C++ Part of , They are often used in combination , So collectively referred to as C/C++.C/C++ It is mainly used for PC software development 、Linux Development 、 Game development 、 MCU and embedded system .
Java	Java It's a universal language , Can be used for website background development 、Android Development 、PC software development , In recent years, he has been involved in the field of big data （ Thanks to Hadoop The popularity of frames ）.
C#	C# It was developed by Microsoft to fight against Java A language of , Implementation mechanism and Java similar , however C# Obviously failed , At present, it is mainly used for Windows Platform software development , And a small number of website background development .
Python	Python It's also a universal language , Mainly used for system operation and maintenance 、 Website background development 、 Data analysis 、 Artificial intelligence 、 Cloud computing and other fields , The momentum has been strong in recent years , It's growing very fast .
PHP	PHP It's a special language , Mainly used to develop website background program .
JavaScript	JavaScript At first, it can only be used for website front-end development , And it's the only language for front-end development , There is no substitute . In recent years, due to Node.js The popularity of ,JavaScript In the background development of the website also occupies a place , And it's growing fast .
Go Language	Go Language is 2009 Year by year Google A programming language released , Grow very fast , There are a lot of applications at home and abroad .Go Language is mainly used for server-side programming , Yes C/C++、Java It's a big challenge .
Objective-C Swift	Objective-C and Swift Can only be used for the development of Apple products , Include Mac、MacBook、iPhone、iPad、iWatch etc. .
assembly language	Assembly language is a language in the early stage of computer development , It's very efficient , But the development efficiency is very low , So assembly language is not used in common application development , Assembly language is only considered in the key modules which require high efficiency and real-time , For example, the operating system kernel 、 drive 、 Instruments and Apparatuses 、 Industrial control, etc .

Different programming languages can be compared to different languages , To express the same meaning , Different statements may be used . for example , expression “ Hello world ” It means ：

• chinese ： Hello world ;
• English ：Hello World
• French ：Bonjour tout le monde

In programming languages , The same operation may use different statements . for example , Show... On the screen “C Chinese language network ”：

• C Language ：puts("C Chinese language network ");
• PHP：echo "C Chinese language network ";
• Java：System.out.println("C Chinese language network ");

Programming languages are similar to human languages , It's made up of intuitive words , It's easy for us to understand what it means , For example, in C In language , We use  puts  This word allows the computer to display text on the screen ;puts yes output string（ Output string ） Abbreviation .

Use puts Show... On the screen “C Chinese language network ”：

puts("C Chinese language network ");

We put the content to be displayed in (" and ") Between , And at the end of the day ;. You have to write like this , This is a fixed format .

summary ： A programming language is a series of instructions used to control a computer （Instruction）, It has a fixed format and vocabulary （ Different programming languages have different formats and vocabulary ）, Must abide by the , Otherwise it will go wrong , Can't achieve our goal .

C Language （C Language） It's a programming language , Study C Language , Mainly to learn its format and vocabulary . Here's a C A complete example of language , It will let the computer display ”C Chinese language network “.

This example mainly demonstrates C Some inherent forms and vocabulary of language , Readers who don't understand don't have to dig deep , I don't have to ask why , We will explain it to you step by step later .

#include <stdio.h>
int main(){
    puts("C Chinese language network ");
    return 0;
}

These words have specific meanings 、 sentence , Organized in a specific format , It's the source code （Source Code）, Also known as source code or code （Code）.

that ,C Language definitely defines every word in the source code 、 The meaning of the sentence , It also defines how they should be organized , This is grammar （Syntax）. It's with what we say when we learn English “ grammar ” similar , They all stipulate how to organize specific words and sentences into intelligible languages .

The process of writing source code is called programming （Program）. People who work in programming are called programmers （Programmer）. Programmers are also very humorous , I like to laugh at myself , I often say that my work is hard , Low status , Like a farmer , So call yourself ” Code the agriculture “, The farmer who wrote the code . Some people call it ” Program the ape “.

C Language /C++ Programming learning base group ：​jq.qq.com/?_wv=1027&k=iRhFqGAf