go实现base64编码的四种方式

go的encoding/base64有四种编码方式：

package main

import (
    "encoding/base64"
    "fmt"
)

func main() {
    msg := []byte("Hello world. 你好，世界！")

    // 标准编码
    encoded := base64.StdEncoding.EncodeToString(msg)
    fmt.Println(encoded)
    // SGVsbG8gd29ybGQuIOS9oOWlve+8jOS4lueVjO+8gQ==

    decoded, _ := base64.StdEncoding.DecodeString(encoded)
    fmt.Println(string(decoded))
    // Hello world. 你好，世界！

    // 常规编码，末尾不补 =
    encoded = base64.RawStdEncoding.EncodeToString(msg)
    fmt.Println(encoded)
    // SGVsbG8gd29ybGQuIOS9oOWlve+8jOS4lueVjO+8gQ

    decoded, _ = base64.RawStdEncoding.DecodeString(encoded)
    fmt.Println(string(decoded))
    // Hello world. 你好，世界！

    // URL safe 编码
    encoded = base64.URLEncoding.EncodeToString(msg)
    fmt.Println(encoded)
    // SGVsbG8gd29ybGQuIOS9oOWlve-8jOS4lueVjO-8gQ==

    decoded, _ = base64.URLEncoding.DecodeString(encoded)
    fmt.Println(string(decoded))
    // Hello world. 你好，世界！

    // URL safe 编码，末尾不补 =
    encoded = base64.RawURLEncoding.EncodeToString(msg)
    fmt.Println(encoded)
    // SGVsbG8gd29ybGQuIOS9oOWlve-8jOS4lueVjO-8gQ

    decoded, _ = base64.RawURLEncoding.DecodeString(encoded)
    fmt.Println(string(decoded))
    // Hello world. 你好，世界！
}

参考

https://syaning.github.io/go-pkgs/encoding/base64.html

https://www.rfc-editor.org/rfc/rfc4648

http://doc.golang.ltd/pkg/encoding_base64.htm

https://base64.us/

原文地址：https://lilongsy.blog.csdn.net/article/details/128814959