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[分享] discuz!帖中图片附件添加alt描述的快捷方法

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发表于 2017-11-15 14:04:49 | 显示全部楼层 |阅读模式 来自 中国–河南–新乡
大家都是知道给图片<img>标签添加alt描述对于SEO的重要性,但是作为国内使用范围最广的discuz!论坛程序却默认没有添加alt描述,现在本文介绍一种简单的方法来帮助站长快速设置图片alt属性,方法如下:
打开模板文件:\template\default\forum\discuzcode.htm
找到如下代码(discuz! X3.2大概在257行左右,其他版本请自行搜索):
  1. <!--{if $_G['setting']['thumbstatus'] && $attach['thumb']}-->
  2.         <img{if $attach['price'] && $_G['forum_attachmentdown'] && $_G['uid'] != $attach['uid']} class="attprice"{/if} style="cursor:pointer" id="aimg_$attach[aid]" aid="$attach[aid]" src="{STATICURL}image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '{$_G[setting][showexif]}')" zoomfile="{if $attach[refcheck]}forum.php?mod=attachment{$is_archive}&aid=$aidencode&noupdate=yes&#172;humb=yes{else}{$attach[url]}$attach[attachment]{/if}" file="{if $attach[refcheck]}forum.php?mod=attachment{$is_archive}&aid=$aidencode{else}{$attach[url]}$attachthumb{/if}" inpost="1"{if $_GET['from'] != 'preview'} onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})"{/if} />
  3. <!--{else}-->
  4.         <img{if $attach['price'] && $_G['forum_attachmentdown'] && $_G['uid'] != $attach['uid']} class="attprice"{/if} id="aimg_$attach[aid]" aid="$attach[aid]" src="{STATICURL}image/common/none.gif" zoomfile="{if $attach[refcheck]}forum.php?mod=attachment{$is_archive}&aid=$aidencode&noupdate=yes&#172;humb=yes{else}{$attach[url]}$attach[attachment]{/if}" file="{if $attach[refcheck]}forum.php?mod=attachment{$is_archive}&aid=$aidencode&noupdate=yes{else}{$attach[url]}$attach[attachment]{/if}" $widthcode id="aimg_$attach[aid]" inpost="1"{if $_GET['from'] != 'preview'} onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})"{/if} />
  5. <!--{/if}-->
复制代码
改成下面的:
  1. <!--{if $_G['setting']['thumbstatus'] && $attach['thumb']}-->
  2.         <img alt="{if $attach['description']}$attach['description']{else}$_G['thread']['subject']{/if}"{if $attach['price'] && $_G['forum_attachmentdown'] && $_G['uid'] != $attach['uid']} class="attprice"{/if} style="cursor:pointer" id="aimg_$attach[aid]" aid="$attach[aid]" src="{STATICURL}image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '{$_G[setting][showexif]}')" zoomfile="{if $attach[refcheck]}forum.php?mod=attachment{$is_archive}&aid=$aidencode&noupdate=yes&#172;humb=yes{else}{$attach[url]}$attach[attachment]{/if}" file="{if $attach[refcheck]}forum.php?mod=attachment{$is_archive}&aid=$aidencode{else}{$attach[url]}$attachthumb{/if}" inpost="1"{if $_GET['from'] != 'preview'} onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})"{/if} />
  3. <!--{else}-->
  4.         <img alt="{if $attach['description']}$attach['description']{else}$_G['thread']['subject']{/if}"{if $attach['price'] && $_G['forum_attachmentdown'] && $_G['uid'] != $attach['uid']} class="attprice"{/if} id="aimg_$attach[aid]" aid="$attach[aid]" src="{STATICURL}image/common/none.gif" zoomfile="{if $attach[refcheck]}forum.php?mod=attachment{$is_archive}&aid=$aidencode&noupdate=yes&#172;humb=yes{else}{$attach[url]}$attach[attachment]{/if}" file="{if $attach[refcheck]}forum.php?mod=attachment{$is_archive}&aid=$aidencode&noupdate=yes{else}{$attach[url]}$attach[attachment]{/if}" $widthcode id="aimg_$attach[aid]" inpost="1"{if $_GET['from'] != 'preview'} onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})"{/if} />
  5. <!--{/if}-->
复制代码
修改结果:
1、当图片附件有文字描述的时候调用该描述至alt;
2、当没有文字描述的时候调用帖子标题至alt;
20170321102901869.webp
【*】注意以上修改代码时请注意使用代码编辑器,不要再记事本中修改,切记!

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