golang实现unicode转换为字符串string的方法

package main
import (
    "bytes"
    "encoding/binary"
    "encoding/hex"
    "fmt"
    "strings"
)
func main() {
    str := `u5bb6u65cf`
    fmt.Println(u2s(str))
}
func u2s(form string) (to string,err error) {
    bs,err := hex.DecodeString(strings.Replace(form,`u`,``,-1))
    if err != nil {
        return
    }
    for i,bl,br,r := 0,len(bs),bytes.NewReader(bs),uint16(0); i < bl; i += 2 {
        binary.Read(br,binary.BigEndian,&r)
        to += string(r)
    }
    return
}