Go中调用dll示例

package main 
import (
  "syscall"
)
func main(){
        h, err := syscall.LoadLibrary("kernel32.dll")
        if err != nil {
          abort("LoadLibrary", err)
        }
  defer syscall.FreeLibrary(h)
  proc, err := syscall.GetProcAddress(h, "GetVersion")
  if err != nil {
    abort("GetProcAddress", err)
  }
  r, _, _ := syscall.Syscall(uintptr(proc), 0, 0, 0, 0)
  print_version(uint32(r))
}
func abort(funcname string, err error) {
  panic(funcname + " failed: " + err.Error())
}
func print_version(v uint32) {
        major := byte(v)
        minor := uint8(v >> 8)
        build := uint16(v >> 16)
        print("windows version ", major, ".", minor, " (Build ", build, ")\n")
}