golang os_plan9 代码
文件路径：/src/cmd/internal/osinfo/os_plan9.go
/ Copyright 2022 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
/go:build plan9
package osinfo
import (
"os"
)
/ Version returns the OS version name/number.
func Version() (string, error) {
b, err := os.ReadFile("/dev/osversion")
if err != nil {
return "", err
}
return string(b), nil
}