search
HomeBackend DevelopmentGolangHow to convert numbers to strings in Go language

How to convert numbers to strings in the Go language: First create a go sample file; then use the "strconv.Itoa" method in the strconv package to convert the byte or int type value into the string representation of the number. That’s it.

How to convert numbers to strings in Go language

Environment of this article: Windows 7 system, Go1.11.2 version, this article is applicable to all brands of computers.

Recommended tutorial: "go Language Tutorial"

The correct posture for converting numbers to strings in Go

In many languages , you can easily convert any data type to a string by concatenating it with a string, or using a type conversion expression. However, if you try to do something that seems obvious in Go (like converting an int to a string), you're unlikely to get the desired effect.

For example:

string(120)

What result do you expect to be returned? If you have experience with other programming languages, most people's guess is "123". In contrast, the above type conversion in Go would result in a value like "E", which is not what we want at all. Because string() will directly convert bytes or numbers into the UTF-8 representation of characters.

So the correct way to convert a byte or int type value into a numerical string representation in Go is to use the method in the strconv package, such as strconv.Itoa.

strconv.Itoa(120)// 返回"120"

In the following example, you can try changing strconv.Itoa to string to see what output you get.

package main
import (
  "fmt"
  "strings"
  "strconv"
)
type IPAddr [4]byte
func (p IPAddr) String() string {
    var ipParts []string
    for _, item := range p {
ipParts = append(ipParts, strconv.Itoa(int(item)))
    }
    return strings.Join(ipParts, ".")
}
func main() {
    hosts := map[string]IPAddr{
"loopback":  {127, 0, 0, 1},
"googleDNS": {8, 8, 8, 8},
    }
    for name, ip := range hosts {
fmt.Printf("%v: %v\n", name, ip)
    }
}

The above is the detailed content of How to convert numbers to strings in Go language. For more information, please follow other related articles on the PHP Chinese website!

Statement
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
go语言有没有缩进go语言有没有缩进Dec 01, 2022 pm 06:54 PM

go语言有缩进。在go语言中,缩进直接使用gofmt工具格式化即可(gofmt使用tab进行缩进);gofmt工具会以标准样式的缩进和垂直对齐方式对源代码进行格式化,甚至必要情况下注释也会重新格式化。

go语言为什么叫gogo语言为什么叫goNov 28, 2022 pm 06:19 PM

go语言叫go的原因:想表达这门语言的运行速度、开发速度、学习速度(develop)都像gopher一样快。gopher是一种生活在加拿大的小动物,go的吉祥物就是这个小动物,它的中文名叫做囊地鼠,它们最大的特点就是挖洞速度特别快,当然可能不止是挖洞啦。

一文详解Go中的并发【20 张动图演示】一文详解Go中的并发【20 张动图演示】Sep 08, 2022 am 10:48 AM

Go语言中各种并发模式看起来是怎样的?下面本篇文章就通过20 张动图为你演示 Go 并发,希望对大家有所帮助!

tidb是go语言么tidb是go语言么Dec 02, 2022 pm 06:24 PM

是,TiDB采用go语言编写。TiDB是一个分布式NewSQL数据库;它支持水平弹性扩展、ACID事务、标准SQL、MySQL语法和MySQL协议,具有数据强一致的高可用特性。TiDB架构中的PD储存了集群的元信息,如key在哪个TiKV节点;PD还负责集群的负载均衡以及数据分片等。PD通过内嵌etcd来支持数据分布和容错;PD采用go语言编写。

go语言能不能编译go语言能不能编译Dec 09, 2022 pm 06:20 PM

go语言能编译。Go语言是编译型的静态语言,是一门需要编译才能运行的编程语言。对Go语言程序进行编译的命令有两种:1、“go build”命令,可以将Go语言程序代码编译成二进制的可执行文件,但该二进制文件需要手动运行;2、“go run”命令,会在编译后直接运行Go语言程序,编译过程中会产生一个临时文件,但不会生成可执行文件。

【整理分享】一些GO面试题(附答案解析)【整理分享】一些GO面试题(附答案解析)Oct 25, 2022 am 10:45 AM

本篇文章给大家整理分享一些GO面试题集锦快答,希望对大家有所帮助!

go语言是否需要编译go语言是否需要编译Dec 01, 2022 pm 07:06 PM

go语言需要编译。Go语言是编译型的静态语言,是一门需要编译才能运行的编程语言,也就说Go语言程序在运行之前需要通过编译器生成二进制机器码(二进制的可执行文件),随后二进制文件才能在目标机器上运行。

golang map怎么删除元素golang map怎么删除元素Dec 08, 2022 pm 06:26 PM

删除map元素的两种方法:1、使用delete()函数从map中删除指定键值对,语法“delete(map, 键名)”;2、重新创建一个新的map对象,可以清空map中的所有元素,语法“var mapname map[keytype]valuetype”。

See all articles

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 Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools