Dedecms文章标题及文章摘要长度修改的方法
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>本文实例讲述了Dedecms文章标题及文章摘要长度修改的方法。分享给大家供大家参考。具体方法如下：</p>
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<strong>1. 文章标题的长度修改</strong></p>
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<strong>方法一</strong>、首先你要进入dedecms后台，系统——系统基本参数——其他选项——文档标题最大长度——在这修改为200或更大(其实200应该是足够了).</p>
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<strong>方法二</strong>、进入phpmyadmin，点击dede_archives 进入表——title——点击编辑——输入200,根据需要调整.</p>
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<strong>注意:</strong>对于使用虚拟主机来说,一般不能直接操作phpmyadmin,所以你只需要执行:系统——SQL命令行工具——输入语句：alter table dede_archives modify title varchar(200)</p>
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这样就解决了,同时在调用的时候注意titlelen的数值大小,有网友提问,按照上述方法修改后,仍然无法显示全部.</p>
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这时问题可能出现:一是模板问题，检查相应模板相应位置上是否使用了titlelen来限制字数，第二，可能是CSS上控制问题，检查对应CSS文件的相应代码，是否在CSS文件上进行了长度或者宽度限制。</p>
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<strong>解决dedecms UTF-8首页文章标题显示字数太短的办法</strong></p>
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原因分析:<font color="#0000ff">因为UTF-8编码1个中文汉字占用的是3个字节，GBK占用的是2个字节，所以，原先$titlelen = AttDef($titlelen,30)等于对大取30个字节，所以最多只显示11个汉字</font>。</p>
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解决方法:进入dedecms的后台，在“模板管理”中的“标签源码管理"，找到arclist.lib.php ，点击“编辑”，找到“$titlelen = AttDef($titlelen,30); ”条语句，把其中的30改为60或者更大的数值即可。当然你也可以在\include\taglib 这个目录中找到arclist.lib.php，然后同样的方法修改好，再传到你的空间。</p>
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<strong>2. 文章摘要长度修改.</strong></p>
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首先,应该在系统→系统基本参数→其它选项“自动摘要长度” 中可以设置,但最高只能实现250,根本没用,所以现在总结一下几种方法.</p>
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<strong>方法一</strong>:</p>
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第一步,进数据库 找到表 dede_archives 下的字段 description 点更改,修改长度 或 字段类型选择blob.</p>
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第二步,在dede目录下article_eidt.php里语名$description = cn_substr($description,250);这里的250不是250个字,而是250字符,所以是不能使用到250个这的,在250后面加多个0就可以了.我试过能行的</p>
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第三步,进后台,系统---系统基本参数---其它设置---自动摘要的长度（例如写成：250000）</p>
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适用即可，不要设置太大，避免增加数据库冗余</p>
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<strong>方法二</strong>:</p>
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archives_add.php 中的：<br>
</p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
代码如下:</div>
<div class="msgborder" id="phpcode5" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
$description = cn_substrR($description,$cfg_auot_description);</div>
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</p>
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archives_edit.php 中的：<br>
</p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
代码如下:</div>
<div class="msgborder" id="phpcode6" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
$description = cn_substrR($description,250);</div>
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</p>
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这两个语句是用来定义摘要的,$cfg_auot_description是自动摘要长度的变量,250是长度的最大值.</p>
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可是为什么一定要给摘要规定一个长度呢？所以这个方法就是直接将摘要长度去掉,将代码改为：</p>
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archives_add.php：<br>
</p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
代码如下:</div>
<div class="msgborder" id="phpcode7" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
$description = $description;</div>
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>
</p>
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archives_edit.php:<br>
</p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
代码如下:</div>
<div class="msgborder" id="phpcode8" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
$description = $description;</div>
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>
</p>
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完全可以行得通,如果不想要文章摘要,可以在把article_article.html 中的一下字符删除掉.<br>
</p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
代码如下:</div>
<div class="msgborder" id="phpcode9" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
{dede:field.description runphp='yes'} <br>
if(@me<>'' )@me = ' <br>
'.@me.' <br>
'; <br>
{/dede:field.description}</div>
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</p>
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希望本文所述对大家的dedecms建站有所帮助。</p>
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