How to convert byte to string in golang

Golang is a strongly typed language that supports efficient concurrent programming and network programming. Golang is suitable for various occasions, including high-load cloud computing applications, drone control, Internet of Things transmission and many other occasions. One of the common requirements is to convert Byte type into string type. This article will introduce how to perform Byte to String operation in Golang.

1. Byte type in Golang

In Golang, Byte is a basic data type. The Byte data type represents an 8-bit unsigned integer, ranging from 0 to 255. At the same time, Byte is also the basis of the string type. In Golang, strings are composed of Byte type sequences.

2. Byte to String operation

In Golang, conversion between Byte type and String type is a relatively common operation. In the Byte to String operation, there are two main methods:

1. Use the string() function to convert

The Go language provides the string() function to complete byte[ ] to string type conversion. This method is relatively simple. You only need to pass the byte[] array as a variable into the string() function.

For example, the following code snippet converts the b array of type byte[] to string type:

package main

import (
    "fmt"
)

func main() {
    b := []byte{97, 98, 99, 100}
    s := string(b)
    fmt.Println(s)
}

The running result is: abcd

As can be seen from this example, byte The [] type array stores ASCII code values. The string() function will convert the ASCII code value into the corresponding character, thus converting the byte[] array into the string type.

2. Use bytes package for conversion

If you need to convert Byte type and String type more efficiently in Golang, you can use the method in bytes package to operate. The bytes package provides many functions to convert Byte type and String type. The conversion between byte[] type and string type can be achieved through the functions in the bytes package.

For example, the following code snippet uses the method in the bytes package to convert the []byte array to the string type:

package main

import (
    "bytes"
    "fmt"
)

func main() {
    b := []byte{97, 98, 99, 100}
    s := string(b)
    fmt.Println(s)

    str := "Hello World!"
    b2 := []byte(str)
    fmt.Println(b2)
    fmt.Println(bytes.Equal(b, b2))
}

The running result is:

abcd

[72 101 108 108 111 32 87 111 114 108 100 33]

false

It can be seen from this example that the Byte to String operation is more efficient through the functions in the bytes package. You can Avoid the overhead of type conversion in the string() function.

3. Summary

Conversion between Byte type and String type is a common operation in Golang, especially in network programming and data transmission. Through the two methods introduced in this article, we can efficiently and simply complete the conversion between Byte and String types in Golang, thereby improving code execution efficiency and program performance.

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