golang中自带base64编码和解码

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golang中base64的编码和解码可以用内置库encoding/base64

package main
 
import (
    "encoding/base64"
    "fmt"
    "log"
)
 
func main() {
    input := []byte("hello golang base64 快乐编程http://www.01happy.com +~")
 
    // 演示base64编码
    encodeString := base64.StdEncoding.EncodeToString(input)
    fmt.Println(encodeString)
 
    // 对上面的编码结果进行base64解码
    decodeBytes, err := base64.StdEncoding.DecodeString(encodeString)
    if err != nil {
        log.Fatalln(err)
    }
    fmt.Println(string(decodeBytes))
 
    fmt.Println()
 
    // 如果要用在url中,需要使用URLEncoding
    uEnc := base64.URLEncoding.EncodeToString([]byte(input))
    fmt.Println(uEnc)
 
    uDec, err := base64.URLEncoding.DecodeString(uEnc)
    if err != nil {
        log.Fatalln(err)
    }
    fmt.Println(string(uDec))
}

运行输出:

go run encode.go 
aGVsbG8gZ29sYW5nIGJhc2U2NCDlv6vkuZDnvJbnqItodHRwOi8vd3d3LjAxaGFwcHkuY29tICt+
hello golang base64 快乐编程http://www.01happy.com +~

aGVsbG8gZ29sYW5nIGJhc2U2NCDlv6vkuZDnvJbnqItodHRwOi8vd3d3LjAxaGFwcHkuY29tICt-
hello golang base64 快乐编程http://www.01happy.com +~

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