BI.createWidget({
    type: 'bi.vertical',
    element: "#wrapper",
    items: [{
        type: "bi.label",
        height: 30,
        text: "十字形的节点"
    }, {
        type: "bi.plus_group_node",
        text: "十字形的节点"
    }, {
        type: "bi.label",
        height: 30,
        text: "三角形的节点"
    }, {
        type: "bi.triangle_group_node",
        text: "三角形的节点"
    }, {
        type: "bi.label",
        height: 30,
        text: "箭头节点"
    }, {
        type: "bi.arrow_group_node",
        text: "箭头节点"
    }]
});