What language is close to go?

go is close to the c language. Go is a C-like high-level language, described as a "C-like language", or "the C language of the 21st century". Go inherits similar expression syntax, control flow structure, basic data types, call parameter value transfer, pointers and many other ideas from C language. It also has the running efficiency of compiled machine code that C language has always valued and is consistent with existing Seamless adaptation to the operating system.

The operating environment of this tutorial: Windows 7 system, GO version 1.18, Dell G3 computer.

go is close to the c language.

Go language is a C-like high-level language

Go language (or Golang) originated in 2007 and was officially released in 2009. Go is a very young language, and its main goal is to "have both the development speed of dynamic languages ​​such as Python and the performance and security of compiled languages ​​such as C/C."

Go language is a computer programming language similar to C language, C language, Python, and Java.

The Go language is sometimes described as a "C-like language", or "the C language of the 21st century". Go inherits similar expression syntax, control flow structure, basic data types, call parameter value transfer, pointers and many other ideas from C language. It also has the running efficiency of compiled machine code that C language has always valued and is consistent with existing Seamless adaptation to the operating system.

Go language is another attempt at programming language design and a major improvement over C-like languages. It not only allows you to access the underlying operating system, but also provides powerful network programming and concurrent programming support. Go language has many uses and can be used for network programming, system programming, concurrent programming, and distributed programming. [Related recommendations: Go video tutorial, Programming teaching]

The difference between Go language and C language

Go's syntax is close to C language, but the declaration of variables is different. Go supports garbage collection. Go's parallel model is based on Tony Hall's Communicating Sequential Process (CSP). Other languages ​​that adopt a similar model include Occam and Limbo, but it also has features of Pi operations, such as channel transmission. Plugin support is opened in version 1.8, which means that some functions can now be dynamically loaded from Go.

Source file comparison

• C language source file

File extension	Source type
.h	Header file, storing code declaration
.c	C language source file, storing code implementation

• Go language source file

File extension	Source type
.go	Go language source file, storing code Implementation

Comparison of code management

• Manage code through files in C language
  • Want to use For a certain function, you only need to include the corresponding .h file.
• Go language uses packages to manage code
  • Go language does not have the concept of .h file , when you want to use a certain function in Go, you only need to import the corresponding package
• Public and private management of functions and variables in C language
  • Through extern and Static implements whether to expose functions and variables
• Public and private management of functions and variables in Go language
  • Implements whether to expose functions by capitalizing the first letter of the function name
  • Realize whether to expose variables by case of the first letter of the variable name

Comparison of keywords

• There are total in C language 32 keywords

##1234 5678##elseswitchcasedefaultwhilestructcharshortintlongfloatdoublevoidsizeofsignedunsignedconststaticexternvolatile

• There are a total of 25 keywords in Go language

##if				##break	return	goto	do
	for	##continue	typedef		enumunion
		autoregister

fallthrough##continuestructconstfuncinterfacerangeimportpackagedefergoselectchan#Data type comparison

1	2	3	4	5	6	7	8
if	else	##switch	case	default	break	return	##goto
	for	type		var		map

C language data types

• Go language data types

• Each C language data type occupies memory space

Type32-bit compilerchar 14482##long48long long888

64-bit compiler
1		int
4		float
4		double
8		short
2
	##void*	4
		Each data type in Go language occupies memory space

• Type

32-bit compiler64-bit compiler##int8/uint811signed char/unsigned charint16/uint1622signed short/unsigned shortint32/uint3244signed int /unsigned intint64/uint6488signed long long int/unsigned long long intbyte11uint8/unsigned charrune44int32/signed intint48Determine the length according to the number of machine digitsuintptr48Determine the length uint32 according to the number of machine digits /uint64float3244floatfloat6488doubletrue11Integer type of charfalse11Integer type of charComment comparison

Essence

Like C language, Go language also supports single-line comments and multi-line comments, and all comments The features are the same as those of C language

Single-line comments//Commented content

Multi-line comments
• /*Commented content*/
  In the Go language, it is officially recommended to use single-line comments instead of multi-line comments (for details, you can directly view the Go official source code)
  • More programming-related knowledge , please visit:
  programming video
  ! !

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