如何在 Go 中將非 UTF-8 文字（例如 Windows-1256）轉換為 UTF-8？

package main

import (
    "bytes"
    "fmt"
    "golang.org/x/text/encoding/charmap"
    "golang.org/x/text/transform"
)

func main() {
    // Declare a Windows-1256 decoder that will read from our input string.
    decoder := transform.NewReader(strings.NewReader("This is a Windows-1256 string."), charmap.Windows1256.NewDecoder())

    // Convert the string to UTF-8 by writing to a bytes buffer.
    var b bytes.Buffer
    if _, err := b.ReadFrom(decoder); err != nil {
        fmt.Println(err)
        return
    }

    fmt.Println(b.String())
}