How to get system drive letters in go language

// cs project
package main
import (
 "fmt"
 . "strconv"
 "syscall"
)
func GetLogicalDrives() []string {
 kernel32 := ("")
 GetLogicalDrives := ("GetLogicalDrives")
 n, _, _ := ()
 s := FormatInt(int64(n), 2)
 var drives_all = []string{"A:", "B:", "C:", "D:", "E:", "F:", "G:", "H:", "I:", "J:", "K:", "L:", "M:", "N:", "O:", "P：", "Q：", "R：", "S：", "T：", "U：", "V：", "W：", "X：", "Y：", "Z："}
 temp := drives_all[0:len(s)]
 var d []string
 for i, v := range s {

  if v == 49 {
   l := len(s) - i - 1
   d = append(d, temp[l])
  }
 }
 var drives []string
 for i, v := range d {
  drives = append(drives[i:], append([]string{v}, drives[:i]...)...)
 }
 return drives
}
func main() {
 (GetLogicalDrives())
}