{
  "widgettype": "VScrollPanel",
  "options": {
    "width": "300px",
    "height": "200px"
  },
  "subwidgets": [
    {
      "widgettype": "Text",
      "options": {
        "text": "垂直滚动内容\n".repeat(20)
      }
    }
  ]
}