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网站结构有哪些类型1：什么是树状结构

网站结构有以下类型： 1. 线性结构：网页按照线性顺序呈现，用户只能按照给定的路径进行操作。 2. 并列结构：网页中的多个页面并列展示，用户可以按照自己的意愿任意选择。 3. 分层结构：根据主题或类别将网页分成不同的层次，并且每一层都有相应的子页链接。 4. 网状结构：网页中的所有页面都可以互相连接，没有明确的层次结构。 5. 混合结构：以上几种结构的组合。树状结构是一种分层结构，也称为层次结构。它是一种基于节点的数据结构，一个节点可以有多个子节点，但只有一个父节点。在网站结构中，树状结构可以体现为主菜单和子菜单的关系，每个菜单项都可以有自己的子菜单。用户可以根据菜单项在网站中进行多级导航。这种结构对于大型网站来说非常适用，可以将内容进行有效归类，使得用户可以更好地浏览和搜索需要的信息。

Public @ 2023-04-16 03:50:18

robots非标准扩展协议

Crawl-delay 指令:几大抓取工具支持Crawl-delay参数，设置为多少秒，以等待同服务器之间连续请求，如:User-agent:*Crawl-delay:10来源：360站长平台

Public @ 2017-09-15 16:09:04

robots.txt文件的格式

robots文件往往放置于根目录下，包含一条或更多的记录，这些记录通过空行分开（以CR,CR/NL, or NL作为结束符），每一条记录的格式如下所示："<field>:<optional space><value><optionalspace>"在该文件中可以使用#进行注解，具体使用方法和UNIX中的惯例一样。该文件中的记录通常

Public @ 2012-09-17 16:08:56

官网首页结构变了，会不会有影响SEO优化？

是的，官网首页结构变化可能会影响SEO优化。如果结构的变化导致网站的URL发生了改变，那么搜索引擎可能会无法找到以前的网页，从而影响排名。此外，如果结构的变化影响了网页的关键词密度、内容质量、导航等方面，也可能会对SEO优化产生影响。因此，在进行结构的变更之前，应该仔细评估其对SEO优化的影响，并在必要时采取措施来避免负面影响。

Public @ 2023-04-17 10:00:08

合理的网站结构优化

我们一直在谈论如何给网站做外部优化，比如如何增加外链、到那里推广，但很多站长朋友并不注重网站结构的优化，也就是内部优化，这方面我也很忽略。而这段时间卢松松一直在优化网站结构，也来谈谈如何做好网站结构的优化，本文列举了很多我常见的问题，希望对大家有用。合理的网站结构优化 SEO优化网站优化 SEO推广第1张（网站结构优化示意图）1：URL规范化URL规范化是指搜索引擎会挑选最合适的URL作为真正

Public @ 2012-05-08 16:12:06

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.021183s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.015260s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 7289 LIMIT 1 [ RunTime:0.022222s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='cate' order by times desc limit 15 [ RunTime:0.014657s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by times desc limit 100 [ RunTime:0.014827s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by rand() limit 30 [ RunTime:0.015300s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 7289 LIMIT 1 [ RunTime:0.014199s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] update `ob_article` set views=views+1 where id=7289 [ RunTime:0.015256s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站结构优化' AND `status` <> -1 LIMIT 1 [ RunTime:0.021602s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站结构优化' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.042987s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海网站结构' AND `status` <> -1 LIMIT 1 [ RunTime:0.021103s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海网站结构' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.032612s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

0.417446s

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