go实现base64编码的四种方式

go的enjscoding/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, _ :编程= 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.Priphpntln(string(decoded))
 // Hello world. 你好，世界！

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

 decoded, _ = base64.URLEncoding.DecodeString(encodandroided)
 fmt.Prin开发者_C学习tln(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/

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