var json2 =({
  "?xml": {
    "@version": "1.0",
    "@encoding": "UTF-8"
  },
  "text": {
    "heading1": {
      "@fieldnumber": "0",
      "#text": "目的"
    },
    "objective": {
      "@fieldnumber": "1",
      "#text": "明确当物质状态发生改变的时候将会发生什么。"
    },
    "heading2": {
      "@fieldnumber": "2",
      "#text": "总结"
    },
    "summary": {
      "@fieldnumber": "3",
      "#cdata-section": "&#187;  物质的状态取决于它的温度。\n<br>&#187;  水是能够以固态、液态和气态存在的物质。\n<br>&#187;  当气体在它的沸点以下冷却的时候它就凝结形成液体。\n<br>&#187;  当液体在它的熔点以下冷却的时候它就凝固形成固体。"
    }
  }
});
