Home Backend Development Golang How to generate random boolean values ​​in Golang?

How to generate random boolean values ​​in Golang?

Jun 01, 2024 pm 04:19 PM
golang generate boolean value

Generate random boolean values ​​in Golang: Import the rand package. Set up a time-based pseudo-random number generator. Use the rand.Intn function to generate a random integer of 0 or 1 and convert it to a Boolean value.

如何在 Golang 中生成随机布尔值?

#How to generate random boolean values ​​in Golang?

Generating random boolean values ​​in Golang is easy, you can use the built-in rand package.

1. Import the required libraries

First, you need to import the rand package:

import "math/rand"
Copy after login

2. Set random Number generator

Then, you need to set up a random number generator, for example, set up a time-based pseudo-random number generator:

rand.Seed(time.Now().UnixNano())
Copy after login

3. Generate random Boolean values

Finally, you can use the rand.Intn function to generate a random integer of 0 or 1 and convert it to a Boolean value:

randomBool := rand.Intn(2) == 1
Copy after login

Practical case

The following is a sample program that demonstrates how to generate 10 random Boolean values ​​​​in Golang:

import (
    "fmt"
    "math/rand"
    "time"
)

func main() {
    rand.Seed(time.Now().UnixNano())

    for i := 0; i < 10; i++ {
        randomBool := rand.Intn(2) == 1
        fmt.Printf("随机布尔值 %d: %t\n", i, randomBool)
    }
}
Copy after login

Output

The program will produce output similar to the following:

随机布尔值 0: true
随机布尔值 1: false
随机布尔值 2: false
随机布尔值 3: true
随机布尔值 4: true
随机布尔值 5: false
随机布尔值 6: false
随机布尔值 7: false
随机布尔值 8: true
随机布尔值 9: false
Copy after login

The above is the detailed content of How to generate random boolean values ​​in Golang?. 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

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

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.

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.

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.

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 use predefined time zone with Golang? How to use predefined time zone with Golang? Jun 06, 2024 pm 01:02 PM

Using predefined time zones in Go includes the following steps: Import the "time" package. Load a specific time zone through the LoadLocation function. Use the loaded time zone in operations such as creating Time objects, parsing time strings, and performing date and time conversions. Compare dates using different time zones to illustrate the application of the predefined time zone feature.

Golang framework development practical tutorial: FAQs Golang framework development practical tutorial: FAQs Jun 06, 2024 am 11:02 AM

Go framework development FAQ: Framework selection: Depends on application requirements and developer preferences, such as Gin (API), Echo (extensible), Beego (ORM), Iris (performance). Installation and use: Use the gomod command to install, import the framework and use it. Database interaction: Use ORM libraries, such as gorm, to establish database connections and operations. Authentication and authorization: Use session management and authentication middleware such as gin-contrib/sessions. Practical case: Use the Gin framework to build a simple blog API that provides POST, GET and other functions.

See all articles