header 和footer模板部分必要代码解析

叮叮

===================Discuz! X1.5版本======================
template\default\common\head_common.htm文件中：

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3. <title><!--{if !empty($navtitle)}-->$navtitle - <!--{/if}--><!--{if empty($nobbname)}--> $_G['setting']['bbname'] - <!--{/if}--> Powered by Discuz!</title><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
   
4. <meta name="keywords" content="{if !empty($metakeywords)}{echo htmlspecialchars($metakeywords)}{/if}" />
   
5.          <meta name="description" content="{if !empty($metadescription)}{echo htmlspecialchars($metadescription)} {/if},$_G['setting']['bbname']" />
   

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title部分和keywords、discription。在后台中的 搜索引擎优化设置
$_G['setting']['seohead'] 对应后台的其他头部信息设置
这代码是对样式文件的加载<!--{csstemplate}-->

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2. <script type="text/javascript">var STYLEID = '{STYLEID}', STATICURL = '{STATICURL}', IMGDIR = '{IMGDIR}', VERHASH = '{VERHASH}', charset = '{CHARSET}', discuz_uid = '$_G[uid]', cookiepre = '{$_G[config][cookie][cookiepre]}', cookiedomain = '{$_G[config][cookie][cookiedomain]}', cookiepath = '{$_G[config][cookie][cookiepath]}', showusercard = '{$_G[setting][showusercard]}', attackevasive = '{$_G[config][security][attackevasive]}', disallowfloat = '{$_G[setting][disallowfloat]}', creditnotice = '<!--{if $_G['setting']['creditnotice']}-->$_G['setting']['creditnames']<!--{/if}-->', defaultstyle = '$_G[style][defaultextstyle]', REPORTURL = '$_G[currenturl_encode]', SITEURL = '$_G[siteurl]';</script><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
   

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初始化必要的js变量

1. <script type="text/javascript" src="{$_G[setting][jspath]}common.js?{VERHASH}"></script>

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加载common.js

template\default\common\header.htm
从第1行至20行
通过判断加载相应的js和css文件

template\default\common\header_diy.htm 用于显示diy时候基本页面
template\default\common\footer.htm

1. <!--{if $_GET['diy'] == 'yes' && ($_G[mod] == 'topic' || $_G[group][allowdiy]) && (empty($do) || $do != 'index') && !empty($_G['style']['tplfile'])}-->
   
2. <script type="text/javascript" src="{$_G[setting][jspath]}common_diy.js?{VERHASH}"></script>
   
3. <script type="text/javascript" src="{$_G[setting][jspath]}portal_diy.js?{VERHASH}"></script>
   
4. <!--{/if}-->
   
5. <!--{if $_GET['diy'] == 'yes' && $space['self'] && $_G[mod] == 'space' && $do == 'index'}-->
   
6. <script type="text/javascript" src="{$_G[setting][jspath]}common_diy.js?{VERHASH}"></script>
   
7. <script type="text/javascript" src="{$_G[setting][jspath]}space_diy.js?{VERHASH}"></script>
   
8. <!--{/if}-->
   
9. <!--{if $_G['member']['newprompt'] && (empty($_G['cookie']['promptstate_'.$_G[uid]]) || $_G['cookie']['promptstate_'.$_G[uid]] != $_G['member']['newprompt']) && $_G['gp_do'] != 'notice'}-->
   
10. <script type="text/javascript">noticeTitle();</script>
    
11. <!--{/if}-->
    
12. <!--{eval output();}-->
    

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这部分代码是diy时候必要的，如果缺少将不能diy

template\default\common\footer_ajax.htm 和template\default\common\fooer_ajax.htm 配合着使用，请尽量不要更改