golang gbk转utf8

package ms2mysql
import (
    "bytes"
    "golang.org/x/text/encoding/simplifiedchinese"
    "golang.org/x/text/transform"
    "io/ioutil"
)
func Decode(s []byte) ([]byte, error) {
    I := bytes.NewReader(s)
    O := transform.NewReader(I, simplifiedchinese.GBK.NewDecoder())
    d, e := ioutil.ReadAll(O)
    if e != nil {
        return nil, e
    }
    return d, nil
}

win7 64位下试了好几个其他方式，结果都不行，也就这个可以，记录下来