HTML文档头部标签设置
考试要求: 掌握     
知识路径:  > 电子商务系统程序设计基础  > Web 设计基础  > HTML5标记语言  > HTML5标记语言  > HTML/HTML5常用标签


 
       文档头部的相关标签必须嵌入在标签内,用于设置页面的功能,包括页面标题及各种参数,这些标签内容不会显示在页面上。
       (1)设置页面标题。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       基本语法: </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       <a href="https://www.rkpass.cn/ruankao_work_version_0103/content_image/21/9787302534426_0332_0107.jpg" target="_blank"><img alt="" width="291.59" height="14.56" src="https://www.rkpass.cn/ruankao_work_version_0103/content_image/21/9787302534426_0332_0107.jpg" /></a> </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       语法说明:一个网页最多一个<title>标签,也可以省略,但如果使用则必须是<head>中的第一个。<title>标签用于将指定文本显示在页面标题栏。<title>可用属性:dir表示文本方向,language表示语言。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       (2)定义页面元信息<meta />。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       在<head>头部中可以包含任意数量的<meta/>标签,用于定义该页面的相关参数信息。例如为搜索引擎提供信息、为浏览器设置显示该页面的相关参数等,语法格式如下所示: </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       ①<meta name="键名"content="键值"/> </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       搜索引擎会根据网页META标签提供的信息进行搜索,例如按关键字、作者姓名、内容描述等进行搜索。在<meta />标签中使用name/content属性可为网络搜索引擎提供信息,常见应用形式如下: </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       <a href="https://www.rkpass.cn/ruankao_work_version_0103/content_image/21/9787302534426_0332_0108.jpg" target="_blank"><img alt="" width="287.69" height="44.46" src="https://www.rkpass.cn/ruankao_work_version_0103/content_image/21/9787302534426_0332_0108.jpg" /></a> </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       ②<meta http-equiv="键名"content="键值"/> </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       使用http-equiv/content属性可设置服务器发送给浏览器的HTTP头部信息,为浏览器显示该页面提供相关的参数。其中http-equiv属性提供参数类型,content提供对应的参数值。常见应用形式如下: </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       <a href="https://www.rkpass.cn/ruankao_work_version_0103/content_image/21/9787302534426_0332_0109.jpg" target="_blank"><img alt="" width="290.68" height="65.52" src="https://www.rkpass.cn/ruankao_work_version_0103/content_image/21/9787302534426_0332_0109.jpg" /></a> </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       (3)引用外部文件<link />。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       一个页面往往需要多个外部文件配合,在<head>中使用<link />标签可引用外部文件,一个页面允许使用多个<link />标签引用多个外部文件。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       基本语法: </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       <a href="https://www.rkpass.cn/ruankao_work_version_0103/content_image/21/9787302534426_0333_0110.jpg" target="_blank"><img alt="" width="291.2" height="30.55" src="https://www.rkpass.cn/ruankao_work_version_0103/content_image/21/9787302534426_0333_0110.jpg" /></a> </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"><span class="shiwu_text_v2_csdm">       语法说明:href为该属性指定引用外部文件的URL。Type为该属性规定目标文件类型。rel/rev这两个属性表示当前源文档与目标文档之间的关系和方向。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td width="100%" align="center" colspan="" height="30" bgcolor=""></td> </tr> </table> <!--一个完整知识点的区域 结束--> </td> </tr> </table> </td> </tr> <tr> <td width="100%" align="left" colspan="2" height="20"></td> </tr> </table> </td> <td width="2%" align="center" 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