DedeCMS文章页面的上一篇下一篇链接增加文章摘要

　　DedeCMS系统默认的是在文章的上一篇和下一篇的链接只显示标题，可是有时我们但愿显示其他信息，好比文章的摘要。

　　找到arc.archives.class.php文件，在include目次下面，然后查找“GetPreNext”这个函数，将

$query
= "Select
arc.id,arc.title,arc.shorttitle,arc.typeid,arc.ismake,arc.senddate,arc.arcrank,arc.money,arc.filename,arc.litpic,
t.typedir,t.typename,t.namerule,t.namerule2,t.ispart,t.moresite,t.siteurl,t.sitepath
from `jcode_archives` arc left join jcode_arctype t on arc.typeid=t.id ";

　　改成：

$query = "Select
arc.id,arc.title,arc.shorttitle,arc.typeid,arc.ismake,arc.senddate,arc.arcrank,arc.money,arc.filename,arc.litpic,
arc.description,t.typedir,t.typename,t.namerule,t.namerule2,t.ispart,t.moresite,t.siteurl,t.sitepath
from `jcode_archives` arc left join jcode_arctype t on arc.typeid=t.id ";

　　较量一下其实此刻只是多了arc.description，这就是文章的摘要，也称为文章描写。

　　需要留意的是这里的jcode_archives和jcode_arctype中的jcode_是我表布局的前缀，你需要将这个前缀改成你本身的。

　　此刻我们已经将文章描写从数据库内里取出来了。下一步将描写显示在页面上，显示毗连文字的代码原来是这样的，你可以通过查找找到，其实就在上面那段代码的四周：

if(is_array($preRow))
{
$mlink =
GetFileUrl($preRow['id'],$preRow['typeid'],$preRow['senddate'],$preRow['title'],$preRow['ismake'],$preRow['arcrank'],
$preRow['namerule'],$preRow['typedir'],$preRow['money'],$preRow['filename'],$preRow['moresite'],$preRow['siteurl'],$preRow['sitepath']);
$this->PreNext['pre']
= "上一篇：<a href='http://down.chinaz.com/try/201205/$mlink'>{$preRow['title']}</a>
";
$this->PreNext['preimg'] = "<a href='http://down.chinaz.com/try/201205/$mlink'><img
src=\"{$preRow['litpic']}\" alt=\"{$preRow['title']}\"/></a>
";
}
else
{
$this->PreNext['pre'] = "上一篇：没有了 ";
$this->PreNext['preimg']
="<img src=http://down.chinaz.com/\"/templets/default/images/nophoto.jpg\"
alt=\"对不起，没有上一图集了！\"/>";
}
if(is_array($nextRow))
{
$mlink =
GetFileUrl($nextRow['id'],$nextRow['typeid'],$nextRow['senddate'],$nextRow['title'],$nextRow['ismake'],$nextRow['arcrank'],
$nextRow['namerule'],$nextRow['typedir'],$nextRow['money'],$nextRow['filename'],$nextRow['moresite'],$nextRow['siteurl'],$nextRow['sitepath']);
$this->PreNext['next']
= "下一篇：<a href='http://down.chinaz.com/try/201205/$mlink'>{$nextRow['title']}</a>
";
$this->PreNext['nextimg'] = "<a href='http://down.chinaz.com/try/201205/$mlink'><img
src=\"{$nextRow['litpic']}\" alt=\"{$nextRow['title']}\"/></a>
";
}
else
{
$this->PreNext['next'] = "下一篇：没有了 ";
$this->PreNext['nextimg'] ="<a href='javascript:void(0)'
alt=\"\"><img src=http://down.chinaz.com/\"/templets/default/images/nophoto.jpg\"
alt=\"对不起，没有下一图集了！\"/></a>";
}
}

　　此刻为了显示出文章描写，在每一个a标签之后添加一个div div中包括文章描写：

if(is_array($preRow))
{
$mlink =
GetFileUrl($preRow['id'],$preRow['typeid'],$preRow['senddate'],$preRow['title'],$preRow['ismake'],$preRow['arcrank'],
$preRow['namerule'],$preRow['typedir'],$preRow['money'],$preRow['filename'],$preRow['moresite'],$preRow['siteurl'],$preRow['sitepath']);
$this->PreNext['pre']
= "上一篇：<a href='http://down.chinaz.com/try/201205/$mlink'>{$preRow['title']}</a> <div>{$preRow['description']}</div>
";
$this->PreNext['preimg'] = "<a href='http://down.chinaz.com/try/201205/$mlink'><img
src=\"{$preRow['litpic']}\" alt=\"{$preRow['title']}\"/></a> <div>{$preRow['description']}</div> ";
}
else
{
$this->PreNext['pre']
= "上一篇：没有了 ";
$this->PreNext['preimg'] ="<img
src=http://down.chinaz.com/\"/templets/default/images/nophoto.jpg\"
alt=\"对不起，没有上一图集了！\"/>";
}
if(is_array($nextRow))
{
$mlink =
GetFileUrl($nextRow['id'],$nextRow['typeid'],$nextRow['senddate'],$nextRow['title'],$nextRow['ismake'],$nextRow['arcrank'],
$nextRow['namerule'],$nextRow['typedir'],$nextRow['money'],$nextRow['filename'],$nextRow['moresite'],$nextRow['siteurl'],$nextRow['sitepath']);
$this->PreNext['next']
= "下一篇：<a href='http://down.chinaz.com/try/201205/$mlink'>{$nextRow['title']}</a> <div>{$preRow['description']}</div>
";
$this->PreNext['nextimg'] = "<a href='http://down.chinaz.com/try/201205/$mlink'><img
src=\"{$nextRow['litpic']}\" alt=\"{$nextRow['title']}\"/></a> <div>{$preRow['description']}</div> ";
}
else
{
$this->PreNext['next']
= "下一篇：没有了 ";
$this->PreNext['nextimg'] ="<a href='javascript:void(0)'
alt=\"\"><img src=http://down.chinaz.com/\"/templets/default/images/nophoto.jpg\"
alt=\"对不起，没有下一图集了！\"/></a>";
}
}

　　这样做的话能显示文章摘要，可是名目大概会很乱，你可以按照需要增加样式。

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