var json2 =({
  "?xml": {
    "@version": "1.0",
    "@encoding": "UTF-8"
  },
  "text": {
    "heading1": {
      "@fieldnumber": "0",
      "#text": "目的"
    },
    "objective": {
      "@fieldnumber": "1",
      "#text": "学习一些植物和动物细胞中的构造部分的名称和功能。"
    },
    "heading2": {
      "@fieldnumber": "2",
      "#text": "总结"
    },
    "summary": {
      "@fieldnumber": "3",
      "#cdata-section": "&#187;  几乎所有的细胞都有细胞核，细胞膜和细胞质。\n<br>&#187;  细胞核控制细胞的活动，包含遗传物质。\n<br>&#187;  细胞膜控制物质的进出 。\n<br>&#187;  细胞质是化学反应发生的地点。"
    }
  }
});
