如何在Google Golang中获取Windows的系统根目录？

Under Windows, the system root directory could be like C:// or D:// (when the OS is installed in driver D:/). How to get this folder in Go?

You could use filepath.VolumeName(os.GetEnv("SYSTEMROOT")) + "\\" or the shorter os.GetEnv("SYSTEMDRIVE") + "\\". The windir environment variable probably shouldn't be used anymore honestly since it is not a system-controlled environment variable.

Source for the mentioned environment variables

You may use os.Getenv to get the value for "environment" variable windir. An example is below:

package main
import "os"
import "fmt"


func main() {

    fmt.Println("system dir: ", os.Getenv("windir"))

}