Let's talk about the operation of ASCII code conversion in Golang

In computer programming, ASCII code is a very common character encoding, which converts common characters into corresponding numerical representations. In the Golang language, the operation of ASCII code conversion is also very simple. This article will introduce the relevant content.

1. Introduction to ASCII code

ASCII code is the abbreviation of American Standard Code for Information Interchange, which means "American Standard Code for Information Interchange". It is a collection of ASCII codes that contains all printable characters from 0 to 127, including uppercase and lowercase letters, numbers, punctuation marks, etc. In computers, each character corresponds to a unique ASCII code.

2. ASCII code conversion in Golang

Golang has a variety of built-in ASCII code conversion functions. Here is a brief introduction to several commonly used functions:

1. Convert numbers into corresponding ASCII characters

In Golang, you can use the Itoa function in the strconv package to convert numbers into corresponding ASCII characters. The usage of the Itoa function is as follows:

func Itoa(i int) string

Among them, i is the number that needs to be converted, and the function return value is the converted ASCII code character. For example, convert the number 100 into the corresponding ASCII code character:

package main

import (
    "fmt"
    "strconv"
)

func main() {
    i := strconv.Itoa(100)
    fmt.Println(i)
}

The output result is:

100

2. Convert the ASCII character into the corresponding number

in Golang , you can use the Atoi function in the strconv package to convert ASCII characters into corresponding numbers. The usage of the Atoi function is as follows:

func Atoi(s string) (int, error)

Among them, s is the ASCII character that needs to be converted, and the function return value is the converted number and the errors that may occur during the conversion process. For example, convert the ASCII character '100' into the corresponding number:

package main

import (
    "fmt"
    "strconv"
)

func main() {
    i, err := strconv.Atoi("100")
    if err!=nil{
        fmt.Println("转换失败，原因是：",err)
    }else{
        fmt.Println(i)
    }
}

The output result is:

100

3. Convert the ASCII character into the corresponding byte

in In Golang, you can use the []byte() function to convert ASCII characters into corresponding bytes. For example, convert the ASCII character 'abc' into the corresponding byte:

package main

import (
    "fmt"
)

func main() {
    str := "abc"
    byteStr := []byte(str)
    fmt.Println(byteStr)
}

The output result is:

[97 98 99]

4. Convert the byte into the corresponding ASCII character

In Golang, you can use the string() function to convert bytes into corresponding ASCII characters. For example, convert bytes [97 98 99] to the corresponding ASCII characters:

package main

import (
    "fmt"
)

func main() {
    byteStr := []byte{97, 98, 99}
    str := string(byteStr)
    fmt.Println(str)
}

The output result is:

abc

3. Summary

This article introduces Golang Commonly used ASCII code conversion functions include converting numbers into corresponding ASCII characters, converting ASCII characters into corresponding numbers, converting ASCII characters into corresponding bytes, and converting bytes into corresponding ASCII characters. Mastering the use of these functions can help us handle ASCII code-related operations more conveniently in Golang.

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