试试！
uses Winsock;
function getIPs: TStrings;
type
TaPInAddr = Array[0..10] of PInAddr;
PaPInAddr = ^TaPInAddr;
var
phe: PHostEnt;
pptr: PaPInAddr;
Buffer: Array[0..63] of Char;
I: Integer;
GInitData: TWSAData;
begin
WSAStartup($101, GInitData);
Result:=TStringList.Create;
Result.Clear;
GetHostName(Buffer, SizeOf(Buffer));
phe := GetHostByName(buffer);
if phe = nil then
begin
Exit;
end;
pPtr := PaPInAddr(phe^.h_addr_list);
I := 0;
while pPtr^ <> nil do
begin
Result.Add(inet_ntoa(pptr^^));
Inc(I);
end;
WSACleanup;
end;
