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
2 | 3 | 4 | 5 | 6 | 7 | 8 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
##if | ##elseswitch | case | default | ##break | return | goto | do | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
for | ##continue | typedef | structenumunion | char | short | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
long | float | double | void | sizeof | signed | unsigned | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
const | autoregister | staticextern | volatile |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
---|---|---|---|---|---|---|---|
if | else | ##switch | case | default | break | return | ##goto |
for | ##continuetype | struct | var | const | map | func | |
range | import | package | defer | go | select | chan | |
|
C language data types
-
Go language data types
-
Each C language data type occupies memory space
64-bit compiler | ||
---|---|---|
1 | int | |
4 | float | |
4 | double | |
8 | short | |
2 | ##long | 4 |
long long | 8 | |
##void* | 4 | |
Each data type in Go language occupies memory space |
- Type
Essence | ##int8/uint8 | 1 | |
---|---|---|---|
int16/uint16 | 2 | 2 | |
int32/uint32 | 4 | 4 | |
int64/uint64 | 8 | 8 | |
byte | 1 | 1 | |
rune | 4 | 4 | |
int | 4 | 8 | |
uintptr | 4 | 8 | |
float32 | 4 | 4 | |
float64 | 8 | 8 | |
true | 1 | 1 | |
false | 1 | 1 | |
Comment comparison |
Single-line comments//Commented content
- Multi-line comments
- /*Commented content*/
-
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