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Alt标签和Title标签的区别在和使用讲解

Alt标签和Title标签都是用来为网页中的图像元素提供文字描述的标记。 Alt标签是一种HTML标签，用于为图像元素提供文本描述。这个描述在以下情况下会很有用： 1. 当图像无法加载时，Alt标签可以在页面上显示一个代替文本，使用户知道该图像应该出现的位置和意义。 2. Alt标签还可以帮助搜索引擎了解图像的内容和意义，从而对网页的排名产生影响。 3. 对于视障人士和使用屏幕阅读器的人来说，Alt标签是必要的辅助技术，帮助他们理解页面中的图像元素。 Title标签也是一种HTML标记，用于提供更详细的描述。Title标签的作用包括： 1. 当用户将鼠标悬停在图像上时，Title标签可以显示一个具有更详细信息的工具提示（tooltip）。 2. 对于链接或按钮等互动元素，Title标签可以提供更多的指示，例如告诉用户一个链接将带他们去哪儿。 3. 在搜索结果中，一些搜索引擎可以使用Title标签作为网页的标题，从而提高点击率。总体来说，Alt标签和Title标签都是非常有用的HTML标记，可以提高网页的可访问性和搜索引擎优化效果。区别在于Alt标签主要用于图像元素的基本描述，而Title标签则提供更详细的信息和指示。

Public @ 2023-04-09 23:51:00

网站图片的优化有哪些？关于图片优化的7个方法

一：图片的大小现在用户在浏览网页时，不再青睐于光光的文字，而是转向图文并茂，一段段优美的文字，配上高档霸气的图片，美丽而富有磁力，就像是一个美女披上了一件漂亮的衣服一样，楚楚动人。但是在配置图片的时候需要注意图片的大小与尺寸，搜索引擎派遣蜘蛛来爬取你的网站图片时，喜欢接近121:75像素大小的图片，一是给网站服务器减压，第二是不拖累网站的网速，利用用户的点击快速浏览，一般来讲，6秒钟网站页面打不开

Public @ 2017-10-10 15:16:42

如何设置canonical标签

canonical标签应该放置于页面的head里，代码示例如下：

Public @ 2023-02-25 03:36:05

高质量图片，对网站SEO，为什么那么重要？

1、SEO图片优化竞争低从SEO的角度，所有的优化工作都是为目标流量所服务的，我们知道百度图片搜索，这部分的流量几乎是百度搜索流量的25%，由于竞争度相对较低，获取这部分的流量成本相对低廉，很多SEM与SEO从业者，开始精细化运营这部分流量。对SEO与SEM不清楚的朋友可见此文（SEO优化与SEM（竞价）区别在哪？）。2、符合行业发展预期我们知道从2017年开始，百度不断在调整搜索行业的发展方向，

Public @ 2016-03-10 15:16:43

网页图片的SEO优化有哪些要点？

许多SEOer都认为网站优化就是单纯依靠内容优化，但其实一个优秀的网站，网站中的每一个元素都是有优化的必要性的，如：框架优化、导航优化、代码优化、CSS优化、JS优化、图片优化等。优化中最常见的网页内容优化我们都知道，除了能够用流畅、恰当的文字表达你想表达的内容，还需要高质量的图片来突出文章的可读性和吸引力。因此，你在SEO网站的优化中，不仅要学会制作高质量的文章，还要投入相当大的精力来优化图片。

Public @ 2015-08-21 15:16:41

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.027468s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_config` [ RunTime:0.021003s ]
[ SQL ] SELECT * FROM `ob_config` [ RunTime:0.018579s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_config', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 25, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_hook` [ RunTime:0.020625s ]
[ SQL ] SELECT `id`,`name`,`addon_list` FROM `ob_hook` [ RunTime:0.018729s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_hook', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 3, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.020500s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 7016 LIMIT 1 [ RunTime:0.018600s ]
[ 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:0.018893s ]
[ 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:0.019247s ]
[ 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:0.020068s ]
[ 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` = 7016 LIMIT 1 [ RunTime:0.018532s ]
[ 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+2 where id=7016 [ RunTime:0.021265s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站页面优化' AND `status` <> -1 LIMIT 1 [ RunTime:0.025569s ]
[ 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` = '威海网站页面优化' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.039651s ]
[ 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Alt文字' AND `status` <> -1 LIMIT 1 [ RunTime:0.025159s ]
[ 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Alt文字' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.038082s ]
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