How to convert between ASCII code and string in golang

Golang is an open source, strongly typed programming language that is widely used in the fields of network programming and system programming. In Golang, it is often necessary to convert between ASCII codes and strings.

ASCII code is one of the most commonly used character encoding standards, used to convert characters into binary numbers and vice versa. In Golang, there are two main ways to implement ASCII code conversion: using the strconv package and using the fmt package.

1. Use strconv package for ASCII code conversion

The strconv package is a string processing package in the Golang standard library, which provides many string conversion functions. Achieve various types of conversion, including ASCII code conversion. The following is a sample code that converts ASCII code into a string:

package main

import (
    "fmt"
    "strconv"
)

func main() {
    asciiCode := 65 // 字符'A'对应的ASCII码
    s := strconv.Itoa(asciiCode)

    fmt.Println(s) // 输出结果：65
}

In the above code, the Itoa function of the strco package converts the ASCII code into a string and returns it. We can view the conversion results by outputting the string to the console.

Similarly, we can use the Atoi function to convert the string into ASCII code:

package main

import (
    "fmt"
    "strconv"
)

func main() {
    s := "65" // 字符串'65'表示ASCII码为65的字符'A'
    asciiCode, _ := strconv.Atoi(s)

    fmt.Println(asciiCode) // 输出结果：65
}

In the above code, the Atoi function of the strconv package converts the string into an integer type and returns, We need to convert the returned result into ASCII code.

2. Use the fmt package for ASCII code conversion

The fmt package is also a string processing package in the Golang standard library. The Sprintf function can implement ASCII codes and strings. conversion between. The following is a sample code that converts ASCII code into a string:

package main

import "fmt"

func main() {
    asciiCode := 65 // 字符'A'对应的ASCII码
    s := fmt.Sprintf("%c", asciiCode)

    fmt.Println(s) // 输出结果：A
}

In the above code, the Sprintf function of the fmt package converts the ASCII code into a character type and returns it. We use the %c format specifier to output the converted characters to the console as a string.

Similarly, we can use the Sscanf function to convert the string into ASCII code:

package main

import "fmt"

func main() {
    s := "A" // 字符串'A'表示ASCII码为65的字符'A'
    var asciiCode int
    fmt.Sscanf(s, "%c", &asciiCode)

    fmt.Println(asciiCode) // 输出结果：65
}

In the above code, the Sscanf function of the fmt package converts the string into a character type and saves it to In the variable asciiCode, we need to convert it into ASCII code.

Summary

In Golang, conversion between ASCII codes and strings can be implemented using functions in the strconv package and the fmt package. No matter which method is used, as long as you master the basic function calls and the use of format specifiers, you can easily achieve conversion.

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