How to convert byte array (byte) to string in golang

Go language is a powerful programming language that is popular among developers because of its high resource efficiency, good cross-platform support, and excellent concurrency performance. In the Go language, converting a byte array (byte) to a string (string) is a common operation. Usually we use built-in functions for conversion. This article will introduce the conversion method between byte array and string in Go language.

1. Convert byte array to string

In the Go language, you can use the built-in string() function to convert a byte array (byte) into a string. (string), the specific syntax format is as follows:

string(byteSlice []byte) string

Among them, byteSlice is the byte array to be converted, and string is the string obtained after conversion. The following is a sample program:

package main

import "fmt"

func main() {
    byteSlice := []byte{103,111,108,97,110,103} // 定义字节数组
    str := string(byteSlice) // 字节数组转换成字符串
    fmt.Println(str) // 输出结果：golang
}

In the above program, we define a byte array named byteSlice, which consists of ASCII code values, that is, the ASCII code value of 'g' is 103, ' The ASCII code value of o' is 111, and so on. Convert the byte array to a string through string(byteSlice), assign it to the str variable, and finally print the result.

2. Convert string to byte array

In Go language, to convert a string (string) to a byte array (byte) you need to use the built-in []byte() function, the specific syntax format is as follows:

[]byte(s string) []byte

Among them, s is the string to be converted, and []byte is the byte array obtained after conversion. The following is a sample program:

package main

import "fmt"

func main() {
    str := "golang" // 定义字符串
    byteSlice := []byte(str) // 字符串转换成字节数组
    fmt.Println(byteSlice) // 输出结果：[103 111 108 97 110 103]
}

In the above program, we define a string named str and convert it into a byte array by []byte(str) , and assign it to the byteSlice variable, and finally print the output result.

Summary

In the Go language, conversion of byte arrays and strings is a very common and necessary operation. We can easily achieve this using built-in functions. operate. I hope the above introduction can be helpful to everyone.

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