{
  "widgettype": "Splitter",
  "options": {
    "orientation": "horizontal",
    "width": "500px",
    "height": "300px"
  },
  "subwidgets": [
    {
      "widgettype": "Text",
      "options": {
        "text": "左侧面板"
      }
    },
    {
      "widgettype": "Text",
      "options": {
        "text": "右侧面板"
      }
    }
  ]
}