TAnonymousThreadX<T> = class(TThread)
  private
    FProc: TProc<T>;
    AValue:T;
  protected
    procedure Execute; override;
  public
    constructor Create(const AProc: TProc<T>;ProcPar:T);
  end;

  TThreadHelper= class helper for TThread
    public
      class function CreateAnonymousThreadX<T>(const ThreadProc: TProc<T>;proPar:T): TThread; static;
  end;

implementation

{ TAnonymousThreadX }

constructor TAnonymousThreadX<T>.Create(const AProc: TProc<T>;ProcPar:T);
begin
  inherited Create(True);
  FreeOnTerminate := True;
  FProc := AProc;
  Avalue:=ProcPar;
end;

procedure TAnonymousThreadX<T>.Execute;
begin
  inherited;
  FProc(Avalue);
end;

{ TThreadHelper }

class function TThreadHelper.CreateAnonymousThreadX<T>(const ThreadProc: TProc<T>; proPar: T): TThread;
begin
  Result := TAnonymousThreadX<T>.Create(ThreadProc,proPar);
end;

//这样使用
TThread.CreateAnonymousThreadX<Integer>(TestX,1234).Start;

//这是TestX方法体
procedure T***.TestX(Avalue: Integer);
begin
  btnContinue.Caption:=IntToStr(Avalue);
end;


//如果不想定义TestX方法,也可以如下方法直接调用
  TThread.CreateAnonymousThreadX<Integer>(
  procedure(Avalue:Integer)
  begin
    btnContinue.Caption:=IntToStr(Avalue);
  end
  ,12345).Start;