Golang调用PowerShell.exe总是返回ASCII字符

I am using PowerShell from an application written in Go, but am unable to get it to return non-ASCII characters. At first I used go-powershell, but experience the same issue: https://github.com/gorillalabs/go-powershell/issues/10 and now using a slightly more basic approach:

package main

import (
        "bytes"
        "fmt"
        "os/exec"
)

type PowerShell struct {
        powerShell string
}

func New() *PowerShell {
        ps, _ := exec.LookPath("powershell.exe")
        return &PowerShell{
                powerShell: ps,
        }
}

func (p *PowerShell) Execute(args ...string) (stdOut string, stdErr string, err error) {
        args = append([]string{"-NoProfile", "-NonInteractive"}, args...)
        cmd := exec.Command(p.powerShell, args...)

        var stdout bytes.Buffer
        var stderr bytes.Buffer
        cmd.Stdout = &stdout
        cmd.Stderr = &stderr

        err = cmd.Run()
        stdOut, stdErr = stdout.String(), stderr.String()
        return
}

func main() {
        posh := New()
        stdout, stderr, err := posh.Execute("$OutputEncoding = [Console]::OutputEncoding; (Get-VMSwitch).Name")

        fmt.Println(stdout)
        fmt.Println(stderr)

        if err != nil {
                fmt.Println(err)
        }
}

PrzełąśPrzelas

$OutputEncoding = [Console]::OutputEncoding;

powershell.exe -NoProfile -NonInteractive $OutputEncoding = [Console]::OutputEncoding; (Get-VMSwitch).Name")powershell.exe -NoProfile -NonInteractive (Get-VMSwitch).Name")exec.Command

.Id