public GridPane addGridPane() {
    GridPane grid = new GridPane();
    grid.setHgap(10);
    grid.setVgap(10);
    grid.setPadding(new Insets(0, 10, 0, 10));

    // 将category节点放在第一行,第二列
    Text category = new Text("Sales:");
    category.setFont(Font.font("Arial", FontWeight.BOLD, 20));
    grid.add(category, 1, 0); 

    // 将chartTitle节点放在第一行,第三列
    Text chartTitle = new Text("Current Year");
    chartTitle.setFont(Font.font("Arial", FontWeight.BOLD, 20));
    grid.add(chartTitle, 2, 0);

    // 将chartSubtitle节点放在第二行,占第二和第三列
    Text chartSubtitle = new Text("Goods and Services");
    grid.add(chartSubtitle, 1, 1, 2, 1);

    // 将House图标放在第一列，占第一和第二行
    ImageView imageHouse = new ImageView(
      new Image(LayoutSample.class.getResourceAsStream("graphics/house.png")));
    grid.add(imageHouse, 0, 0, 1, 2); 

    // 将左边的标签goodsPercent放在第三行，第一列，居下
    Text goodsPercent = new Text("Goods\n80%");
    GridPane.setValignment(goodsPercent, VPos.BOTTOM);
    grid.add(goodsPercent, 0, 2); 

    // 将饼图放在第三行，占第二和第三列
    ImageView imageChart = new ImageView(
     new Image(LayoutSample.class.getResourceAsStream("graphics/piechart.png")));
    grid.add(imageChart, 1, 2, 2, 1); 

    // 将右边的标签servicesPercent放在第三行，第四列，居上
    Text servicesPercent = new Text("Services\n20%");
    GridPane.setValignment(servicesPercent, VPos.TOP);
    grid.add(servicesPercent, 3, 2);

    return grid;
}