第1页共11页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共11页epub格式电子书遵循IDPF推出的OCF规范，OCF规范遵循ZIP压缩技术，即epub电子书本身就是一个ZIP文件，我们将epub格式电子书的后缀.epub修改为.zip后，可以通过解压缩软件（例如winrar、winzip）进行浏览或解压处理。一个未经加密处理的epub电子书以三个部分组成，其文件结构如下图所示：1、文件：mimetype每一本epub电子书均包含一个名为mimetype的文件，且内容不变，用以说明epub的文件格式。文件内容如下：application/epub+zip//注释，表示可以用epub工具和ZIP工具打开2、目录：META-INF依据OCF规范，META-INF用于存放容器信息，默认情况下（即加密处理），该目录包含一个文件，即container.xml,文件内容如下：container.xml的主要功能用于告诉阅读器，电子书的根文件（rootfile）的路径（红色部分）和打开放式，一般来讲，该container.xml文件也不需要作任何修改，除非你改变了根文件的路径和文件名称。除container.xml文件之外，OCF还规定了以下几个文件：（1）[manifest.xml]，文件列表（2）[metadata.xml]，元数据（3）[signatures.xml]，数字签名（4）[encryption.xml]，加密（5）[rights.xml]，权限管理对于epub电子书而言，这些文件都是可选的。3、目录：OEBPSOEBPS目录用于存放OPS文档、OPF文档、CSS文档、NCX文档，如果是制作中文电子书，则还包括ttf文档（即字体文档），OEBPS目录也可以建立相应的子目录，例如建立chapter目录，把各章节的OPS文档放在chapter目录之中。下图一本epub电子书OEBPS文档的实例图：第3页共11页第2页共11页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第3页共11页其中content.opf文件和toc.ncx文件为必需，其它文件可根据电子书的具体情况而定。content.opf文件见博文OPF剖析toc.ncx文件见博文toc.ncx剖析OPF文档是epub电子书的核心文件，且是一个标准的XML文件，依据OPF规范，主要由五个部分组成：1、,元数据信息，由两个子元素组成：，其元素构成采用dublinecore(DC)的15项核心元素，包括：第4页共11页第3页共11页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第4页共11页:题名<creator>：责任者<subject>：主题词或关键词<description>：内容描述<contributor>：贡献者或其它次要责任者<date>：日期<type>：类型<format>：格式<identifier>：标识符<source>：来源<language>：语种<relation>：相关信息<coverage>：履盖范围<rights>：权限描述<x-metadata>，即扩展元素。如果有些信息在上述元素中无法描述，则在此元素中进行扩展。2、<menifest>，文件列表，由于列出OEBPS文档及相关的文档，有一个子元素构成，<itemid=""href=""media-type="">,该元素由三个属性构成：id:表示文件的ID号href：文件的相对路径media-type：文件的媒体类型例如：<itemid="chap01"href="chap01.xhtml"media-type="application/xhtml+xml"/>3、<spinetoc="ncx">，脊骨，其主要功能是提供书籍的线性阅读次序。由一个子元素构成：第5页共11页第4页共11页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第5页共11页<itemrefidref="">,由一个属性构成：idref:即参照menifest列出的ID例如：<itemrefidref="chap01"/>4、<guide>,指南,依次列出电子书的特定页面,例如封面、目录、序言等,属性值指向文件保存地址。一般情况下，epub电子书可以不用该元素。5、<tour>,导读。可以根据不同的读者水平或者阅读目的,按一定次序,选择电子书中的部分页面组成导读。一般情况下，epub电子书可以不...</div></div><div class="pre-detail-bottom"><a class="pre-detail-more" href="javascript:;" kes-height="0">查看更多 <i class="icon-lower"></i></a></div></div></div><div class="noticeidtxt"><p>1、当您付费下载文档后，您只拥有了使用权限，并不意味着购买了版权，文档只能用于自身使用，不得用于其他商业用途（如 [转卖]进行直接盈利或[编辑后售卖]进行间接盈利）。<br>2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。<br>3、如文档内容存在违规，或者侵犯商业秘密、侵犯著作权等，请点击“违规举报”。</p></div><div class="noticeidtxt"><p>碎片内容</p></div></div><div class="view-hd"><div class="container"><div class="view-hd-bd"><div class="format"><i class="file-icon icon-word"></i></div><h2>EPUB电子书介绍</h2><ul class="operate"><li><a class="btn-vip-download view-down-btn" href="javascript:;" onclick="down.init()" title="下载EPUB电子书介绍"><i class="iconfont icon-xiazai"></i><span>下载文档</span></a></li><li><a id="close-preview" class="btn btn-close" href="javascript:;" title="关闭预览"><i class="iconfont iconclose"></i><span>关闭预览</span></a></li></ul></div></div></div><script>var _preview_param = {
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