golang实现base64转码unicode转为utf-8

package main

import (
"encoding/base64"
"fmt"
"strconv"
"strings"
)

func main() {
// base64转码
str := "Hello, 世界"
encoded := base64.StdEncoding.EncodeToString([]byte(str))
fmt.Println(encoded)

// unicode转utf-8
str = "\\u4e2d\\u56fd\\u4eba"
unicodeArr := strings.Split(str, "\\u")[1:]
var utf8Arr []byte
for _, unicode := range unicodeArr {
code, _ := strconv.ParseInt(unicode, 16, 32)
utf8Arr = append(utf8Arr, byte(code))
}
utf8Str := string(utf8Arr)
fmt.Println(utf8Str)
}

// 输出：
// SGVsbG8sIOS4lueVjA==
// 中国人

相关问题

golang实现base64转为unicode转为utf-8

package main

import (
"encoding/base64"
"fmt"
)

func main() {
base64Data := "5bCP6aO85oiR56aB5Yi25L+d5paH56ug5paH5YWz"
data, _ := base64.StdEncoding.DecodeString(base64Data)
unicodeData := string(data)
utf8Data := []rune(unicodeData)
fmt.Printf("%s\n", string(utf8Data))
}

//输出：你好，世界！

golang实现unicode转换utf-8

package main

import (
"fmt"
"unicode/utf8"
)

func main() {
// 定义一个unicode字符串
unicodeStr := "Hello, 世界"

// 将unicode字符串转换为utf-8编码的字节数组
utf8Bytes := []byte(unicodeStr)

// 打印utf-8编码的字节数组
fmt.Printf("utf-8编码的字节数组：%v\n", utf8Bytes)

// 将utf-8编码的字节数组转换为unicode字符串
unicodeStr2 := string(utf8Bytes)

// 打印转换后的unicode字符串
fmt.Printf("转换后的unicode字符串：%v\n", unicodeStr2)

// 计算utf-8编码的字节数
utf8Len := utf8.RuneCount(utf8Bytes)

// 打印utf-8编码的字节数
fmt.Printf("utf-8编码的字节数：%v\n", utf8Len)
}

输出结果：

utf-8编码的字节数组：[72 101 108 108 111 44 32 228 184 150 231 149 140]
转换后的unicode字符串：Hello, 世界
utf-8编码的字节数：13