Home Backend Development Golang Which functions in golang use the standard library?

Which functions in golang use the standard library?

Dec 30, 2019 pm 03:13 PM
golang

Which functions in golang use the standard library?

There are more than 150 built-in packages with common functions such as fmt, os, etc. in the Go language. They are called standard libraries, most of which (except some low-level ones) ) is built into Go itself. The full list can be viewed at Go Walker.                                                                                                                 (Recommended learning: go)

unsafe: Contains some commands that break the "type safety" of the Go language. They will not be used in general programs and can be used in C/C The program is being called.

syscall-os-os/exec:os: Provides us with a platform-independent operating system functional interface. It adopts a Unix-like design, hiding the differences between different operating systems, and allowing different file systems and operating systems to Objects behave consistently.

os/exec: Provides a way for us to run external operating system commands and programs. syscall: The underlying external package provides the basic interface for underlying calls of the operating system.

Restart Linux through a Go program to reflect its capabilities.

package main
import (
	"syscall"
)

const LINUX_REBOOT_MAGIC1 uintptr = 0xfee1dead
const LINUX_REBOOT_MAGIC2 uintptr = 672274793
const LINUX_REBOOT_CMD_RESTART uintptr = 0x1234567

func main() {
	syscall.Syscall(syscall.SYS_REBOOT,
		LINUX_REBOOT_MAGIC1,
		LINUX_REBOOT_MAGIC2,
		LINUX_REBOOT_CMD_RESTART)
}
Copy after login

archive/tar and /zip-compress: Compress (decompress) file function.

fmt-io-bufio-path/filepath-flag:

fmt: Provides formatted input and output functions.

io: Provides basic input and output functions, most of which are encapsulation around system functions.

bufio: Encapsulation of buffered input and output functions.

path/filepath: used to operate the target file name path in the current system.

flag: Operation of command line parameters.  

strings-strconv-unicode-regexp-bytes:

strings: Provides operations on strings.

strconv: Provides functions for converting strings to basic types.

unicode: Provides special functions for unicode strings.

regexp: Regular expression function.

bytes: Provides operations on character sharding.

index/suffixarray: Quick substring query.

math-math/cmath-math/big-math/rand-sort:

math: Basic mathematical functions.

math/cmath: Operations on complex numbers.

math/rand: Pseudo-random number generation.

sort: Sort arrays and customize collections.

math/big: Implementation and calculation of large numbers. 

container-/list-ring-heap: Implement operations on collections.

list: Double linked list.

ring: Ring linked list.

The above is the detailed content of Which functions in golang use the standard library?. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to safely read and write files using Golang? How to safely read and write files using Golang? Jun 06, 2024 pm 05:14 PM

Reading and writing files safely in Go is crucial. Guidelines include: Checking file permissions Closing files using defer Validating file paths Using context timeouts Following these guidelines ensures the security of your data and the robustness of your application.

How to configure connection pool for Golang database connection? How to configure connection pool for Golang database connection? Jun 06, 2024 am 11:21 AM

How to configure connection pooling for Go database connections? Use the DB type in the database/sql package to create a database connection; set MaxOpenConns to control the maximum number of concurrent connections; set MaxIdleConns to set the maximum number of idle connections; set ConnMaxLifetime to control the maximum life cycle of the connection.

How to save JSON data to database in Golang? How to save JSON data to database in Golang? Jun 06, 2024 am 11:24 AM

JSON data can be saved into a MySQL database by using the gjson library or the json.Unmarshal function. The gjson library provides convenience methods to parse JSON fields, and the json.Unmarshal function requires a target type pointer to unmarshal JSON data. Both methods require preparing SQL statements and performing insert operations to persist the data into the database.

Golang framework vs. Go framework: Comparison of internal architecture and external features Golang framework vs. Go framework: Comparison of internal architecture and external features Jun 06, 2024 pm 12:37 PM

The difference between the GoLang framework and the Go framework is reflected in the internal architecture and external features. The GoLang framework is based on the Go standard library and extends its functionality, while the Go framework consists of independent libraries to achieve specific purposes. The GoLang framework is more flexible and the Go framework is easier to use. The GoLang framework has a slight advantage in performance, and the Go framework is more scalable. Case: gin-gonic (Go framework) is used to build REST API, while Echo (GoLang framework) is used to build web applications.

What are the best practices for error handling in Golang framework? What are the best practices for error handling in Golang framework? Jun 05, 2024 pm 10:39 PM

Best practices: Create custom errors using well-defined error types (errors package) Provide more details Log errors appropriately Propagate errors correctly and avoid hiding or suppressing Wrap errors as needed to add context

How to find the first substring matched by a Golang regular expression? How to find the first substring matched by a Golang regular expression? Jun 06, 2024 am 10:51 AM

The FindStringSubmatch function finds the first substring matched by a regular expression: the function returns a slice containing the matching substring, with the first element being the entire matched string and subsequent elements being individual substrings. Code example: regexp.FindStringSubmatch(text,pattern) returns a slice of matching substrings. Practical case: It can be used to match the domain name in the email address, for example: email:="user@example.com", pattern:=@([^\s]+)$ to get the domain name match[1].

Transforming from front-end to back-end development, is it more promising to learn Java or Golang? Transforming from front-end to back-end development, is it more promising to learn Java or Golang? Apr 02, 2025 am 09:12 AM

Backend learning path: The exploration journey from front-end to back-end As a back-end beginner who transforms from front-end development, you already have the foundation of nodejs,...

How to solve common security problems in golang framework? How to solve common security problems in golang framework? Jun 05, 2024 pm 10:38 PM

How to address common security issues in the Go framework With the widespread adoption of the Go framework in web development, ensuring its security is crucial. The following is a practical guide to solving common security problems, with sample code: 1. SQL Injection Use prepared statements or parameterized queries to prevent SQL injection attacks. For example: constquery="SELECT*FROMusersWHEREusername=?"stmt,err:=db.Prepare(query)iferr!=nil{//Handleerror}err=stmt.QueryR

See all articles