What is the difference between golang and c language?

What is the difference between golang and c language? Let me compare golang and c language. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

1. Source file comparison

C language source file

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

# #Go language source file

File extensionSource type.goGo language source file, storage code implementation

2. Code management comparison

Manage code through files in C language

●When you want to use a certain function, you only need to include the corresponding .h file

Go language Code is managed through packages in Go

●Go language does not have the concept of .h files. When you want to use a certain function in Go, you only need to import the corresponding package

In C language Public and private management of functions and variables

● Through extern and static, whether to expose functions and variables

Public and private management of functions and variables in Go language

● Through the first letter of the function name Whether to expose the function using uppercase and lowercase letters

● Use the uppercase and lowercase letters of the variable name to realize whether to expose the variable

3. Keyword comparison

There are a total of 32 keywords in C language

12345678##switchcasedefaultbreak returnwhileforint##constauto externvolatile1

if	##else					##goto	##do
		##continue	typedefstruct		enumunion	char	short
long	float	double	void	sizeof		signed	unsigned
		registerstatic				There are 25 in Go language Keywords

2

345678##breakreturngotostructconstfuncimportpackagedefergoselectchan 4. Data type comparison

							##if
else	switch	case	default			##fallthrough	for
continue	##type	var		map		interfacerange
							C language data type

Go language data type

Each data type in C language occupies memory space

Type

32-bit compiler

64-bit compiler

charint4482484

1

1

4

float

4

double

8

short

2

long

8

long long

8

void*

8

Each data type in Go language occupies memory space

##int8/uint811signed char/unsigned char int16/uint1622signed short/unsigned shortint32/uint3244signed int/unsigned intint64/uint6488signed long long int/unsigned long long intbyte1 1uint8/unsigned charrune44int32/signed int#int48Determine the length according to the number of machine digitsuintptr 48Determine the length uint32/uint64 according to the number of machine digitsfloat3244floatfloat6488doubletrue11integer type of charfalse11Char type integer

Type	32-bit compiler	64-bit compiler	Essence

5. Comparison of constant variables

C language defines constant and variable format

数据类型 变量名称 = 值;
const 数据类型 常量名称 = 值;

Go language defines constant and variable format

In addition to the following standard formats, Go language also provides good Several simple syntax sugar

var 变量名称 数据类型 = 值;
const 变量名称 数据类型 = 值;

6. Comparison of programming ideas

C language is a process-oriented programming language

Process-oriented: Step by step, hands-on, focusing on what should I do?

Example of cooking: Process-oriented cooking

1. Go shopping for groceries

2. Pick vegetables

3. Wash vegetables

4. Cut vegetables

5. Stir-fry vegetables

6. Wash rice and cook Eat

7. Eat

Go language is an object-oriented programming language

Object-oriented: simplifying the complex, can you do it yourself? I don’t do it myself, but what I focus on is who should I let do it?

Example of cooking: Object-oriented cooking

1. Find a girlfriend or boyfriend who can cook

2. Wife, I’m hungry or husband, I’m hungry

3.Lie down...wait for her/him to prepare the meal

4.Eat

Don't imagine process-oriented and object-oriented to be so magical, they are just different ways of thinking about problems

For more go language, please pay attention to the

go language tutorial column.

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