本文整理自网络，侵删。
procedure TForm1.ComboBox1Change(Sender: TObject);
var
ini:TInifile;
path,section,key:string;
begin
path := ExtractFilePath(application.ExeName)+'config.ini';
if FileExists(path) then
begin
ini:=Tinifile.Create(path);
Section := 'Config';
Key := 'ComboBox';
ini.WriteInteger(Section,Key,ComboBox1.ItemIndex);
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
var
ini:TInifile;
path,section,key:string;
begin
path := ExtractFilePath(application.ExeName)+'config.ini';
if FileExists(path) then
begin
ini:=Tinifile.Create(path);
ComboBox1.ItemIndex := ini.ReadInteger('Config','ComboBox',0);
end;
end;
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