dedecms文章keywords关键词字数限制修改方法（同适用于描述）
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>最近在发布文章的时候发现文章关键词字数会有限制，如果填多了会自动截取，原来dedecms的关键字默认限制是60个字符也就是30个关键字，下边IT粉丝网教您如何修改织梦程序关键字的字数限制，不管是新建网站还是老网站使用dedecms程序建议修改此项，本人亲测可行！</p>
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<strong>第一步</strong></p>
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修改网站后台数据库的关键词字数限制，修改数据库之前建议备份一下！</p>
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进入数据库，查看dede_archives表，默认的关键字与摘要字段是：keywords此项值就是关键字可以看到后边是30，如果修改描述就修改description值，默认为255</p>
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点击进去将数值改为自己想要的，建议255一般都够用了！类型里面char修改为varchar，保存即可！</p>
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<strong>第二步</strong></p>
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修改织梦程序后台管理目录dede中的2个文件：<code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>article_add.php</code>和<code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>article_edit.php</code>，</p>
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在里面分别搜索：搜索不到就搜索keywords即可找到</p>
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<code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>$keywords = cn_substrR($keywords,60);</code></p>
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将后面的数字60改成想要的数字。</p>
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<strong>第三步</strong></p>
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修改管理目录dede中的<code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>/inc/inc_archives_functions.php</code>文件，搜索代码：</p>
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<code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>if(strlen($keywords.$k)>=60</code></p>
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将后面的数字60改成想要的数字。</p>
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最后上传覆盖，清空缓存即可解除字数限制！</p>
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