JavaFX 中的网格和子节点对齐

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.GridPane;
import javafx.geometry.Pos;
import javafx.geometry.HPos;
import javafx.scene.text.Text;
import javafx.scene.control.TextField;
import javafx.stage.Stage;
import javafx.scene.control.Label;
public class FxGrid extends Application {
   @Override
   public void start(Stage stage) {
      Label lbl = new Label ("Simple grid example ..."); // Creating a label with text
      GridPane gridPane = new GridPane(); //Creating a Grid Pane
      gridPane.setPadding(new Insets(10, 10, 10, 10)); //Set the padding of the gridpane
      //Set the vertical and horizontal gaps between the columns
      gridPane.setVgap(15);
      gridPane.setHgap(15);
      gridPane.add(lbl, 0, 1); // Adding the label to the grid pane
      gridPane.setAlignment(Pos.CENTER); // Align the grid pane
      GridPane.setHalignment(lbl, HPos.RIGHT); //Setting the alignment for the child node of grid pane
      Scene scene = new Scene(gridPane, 300, 300); //Creating a scene  with necessary size
      stage.setTitle("Grid Alignment Example"); //Setting title to the Application
      stage.setScene(scene); //Adding scene to the stage
      stage.show(); //Displaying the contents of the stage
   }
   public static void main(String args[]){
      launch(args);  // Launching the application
   }
}