我正在尝试使用JavaFX创建一个场景，程序的标题位于顶部中心，按钮位于场景左侧的垂直线中。然而，这两个元素都聚集在场景的右上角，而不是我想要的位置。

如何让这些元素显示在我想要的位置？

以下是我如何尝试设置程序标题的位置：

  grid.add(gameTitle, 0, 0);
  GridPane.setHalignment(gameTitle, HPos.CENTER);
  GridPane.setValignment(gameTitle, VPos.TOP);

我尝试类似地设置VBox对象：

  grid.getChildren().add(buttonBox);
  GridPane.setHalignment(buttonBox, HPos.LEFT);
  GridPane.setValignment(buttonBox, VPos.CENTER);

我的整个MainMenu类。（这个类在我的Main类中被调用来构造场景）：

package scenes;

import javafx.scene.layout.GridPane;
import javafx.scene.layout.VBox;
import javafx.application.Platform;
import javafx.geometry.HPos;
import javafx.geometry.VPos;
import javafx.scene.control.Button;
import javafx.scene.layout.Pane;
import javafx.scene.text.Font;
import javafx.scene.text.Text;

public class MainMenu {
   public Pane getMainMenuPane() {
      // Create the scene grid
      GridPane grid = new GridPane();
      grid.setHgap(10);
      grid.setVgap(10);

      // Set the game title to the top center  
      Text gameTitle = new Text("Bandit King");
      Font titleFont = new Font(75);
      gameTitle.setFont(titleFont);
      //
      grid.add(gameTitle, 0, 0);
      GridPane.setHalignment(gameTitle, HPos.CENTER);
      GridPane.setValignment(gameTitle, VPos.TOP);

      // Create Button objects and put in VBox
      Button[] buttArr = makeButtons();
      VBox buttonBox = new VBox();
      buttonBox.getChildren().addAll(buttArr);
      buttonBox.setSpacing(10);

      // add Button VBox to GridPane
      grid.getChildren().add(buttonBox);
      GridPane.setHalignment(buttonBox, HPos.LEFT);
      GridPane.setValignment(buttonBox, VPos.CENTER);

      return (Pane) grid;
   }

   private Button[] makeButtons() {
      // Create buttons
      Button start = new Button("Start a New Game");
      Button load = new Button("Load a Saved Game");
      Button exit = new Button("Exit the Game");

      // set Button actions
      start.setOnAction( a -> {
         System.out.println("WIP- start game.");
      });
      load.setOnAction( a -> {
         System.out.println("WIP- load game");
      });
      exit.setOnAction( a -> {
         Platform.exit();
         System.exit(0);
      });

      // return Button[] array
      Button[] buttArr = {start, load, exit};
      return buttArr;
   }


}

我的主类（显示场景）：

package central;

import javafx.stage.Stage;
import scenes.*;
import controllers.*;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;

public class Main  extends Application {

   // Get scene panes
   private static Pane mainMenu = new MainMenu().getMainMenuPane();

   // Create SceneController object.
   private static Scene scene = new Scene(mainMenu, 1600, 900);
   public static SceneController SceneControl = new SceneController(scene);

   @Override
   public void start(Stage stage) {
      stage.setTitle("Bandit King");
      stage.setScene(scene);
      stage.show();
   }

   public static void main(String[] args) {
      launch(args);
   }


}