public VBox addVBox(); {
    VBox vbox = new VBox();
    vbox.setPadding(new Insets(10)); //节点到边缘的空隙
    vbox.setSpacing(8); //节点之间的间隙

    Text title = new Text("Data");
    title.setFont(Font.font("Arial", FontWeight.BOLD, 14));
    vbox.getChildren().add(title);

    Hyperlink options[] = new Hyperlink[] {
        new Hyperlink("Sales"),
        new Hyperlink("Marketing"),
        new Hyperlink("Distribution"),
        new Hyperlink("Costs")};

    for (int i=0; i<4; i++) {
        VBox.setMargin(options[i], new Insets(0, 0, 0, 8)); //为每个节点设置额外的环绕空间
        vbox.getChildren().add(options[i]);
    }

    return vbox;
}