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什么是絕對地址和相對地址？

絕對地址指的是一個絕對的、完整的路徑，可以用來訪問某一資源，而不管當(dāng)前的位置是什么。它形式如：http://www.example.com/index.php。相對地址指的是相對于當(dāng)前頁面的位置來訪問某一資源，它形式如：/index.php或../index.php。

Public @ 2023-02-25 02:12:11

robots.txt 是一個文件，它位于網(wǎng)站的根目錄下，用于告訴搜索引擎和機器人哪些頁面可以被訪問或哪些不應(yīng)該被訪問。以下是 robots.txt 語法教程。 1. User-agent User-agent 表示搜索引擎或機器人的名稱。當(dāng)網(wǎng)站管理員想要禁止某個搜索引擎或機器人訪問網(wǎng)站時，可以使用 User-agent 指定名稱。例如： User-agent: Googlebot Dis

Public @ 2023-06-06 11:00:18

從基礎(chǔ)到精通：認(rèn)識網(wǎng)站301重定向的那些事

301重定向是一種常見的網(wǎng)站管理技術(shù)，它允許網(wǎng)站管理員將一個頁面的URL重定向到另一個頁面的URL上。這種技術(shù)的主要目的是幫助網(wǎng)站維護者將舊的、無用的或已刪除的網(wǎng)頁指向新的、有用的或更新的網(wǎng)頁上，從而保證網(wǎng)站上的鏈接和搜索結(jié)果都能得到正確的指引。以下是關(guān)于301重定向的一些基礎(chǔ)知識： 1. 301重定向與302重定向的區(qū)別 301重定向是一種永久重定向，它會告訴搜索引擎和其他網(wǎng)站，被重定向

Public @ 2023-06-06 03:50:30

什么是絕對地址和相對地址？

在電腦操作學(xué)習(xí)和互聯(lián)網(wǎng)使用中，我們經(jīng)常會接觸絕對地址和相對地址的概念。這里，重點談互聯(lián)網(wǎng)上的，具體談在做網(wǎng)站時，絕對地址和相對地址有什么區(qū)別？絕對地址：互聯(lián)網(wǎng)上的獨立地址，在任何網(wǎng)站通過這個地址可以直接到達目標(biāo)網(wǎng)頁。包含主域名和目錄地址。相對地址：相對于網(wǎng)站的地址，當(dāng)域名改變時，相對地址的“絕對地址”也發(fā)生變化。假設(shè)2個網(wǎng)站A：www.seowhy.com B： www.baidu.c

Public @ 2020-03-04 16:21:34

什么是絕對地址和相對地址？

Public @ 2023-02-25 02:12:11

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基本文件流程錯誤 SQL 調(diào)試

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[ DB ] CONNECT:[ UseTime:0.021625s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.015463s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 5769 LIMIT 1 [ RunTime:0.014393s ]
[ 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:0.014800s ]
[ 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:0.014857s ]
[ 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:0.014842s ]
[ 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` = 5769 LIMIT 1 [ RunTime:0.014252s ]
[ 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=5769 [ RunTime:0.015127s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海網(wǎng)站結(jié)構(gòu)優(yōu)化' AND `status` <> -1 LIMIT 1 [ RunTime:0.021484s ]
[ 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` = '威海網(wǎng)站結(jié)構(gòu)優(yōu)化' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033464s ]
[ 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` = '威海絕對地址,相對地址' AND `status` <> -1 LIMIT 1 [ RunTime:0.022966s ]
[ 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` = '威海絕對地址,相對地址' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.030368s ]
[ 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', ) ]

0.409576s

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什么是絕對地址和相對地址？

robots.txt語法教程

從基礎(chǔ)到精通：認(rèn)識網(wǎng)站301重定向的那些事

什么是絕對地址和相對地址？

什么是絕對地址和相對地址？

更多您感興趣的搜索

Categories

Tags

什么是絕對地址和相對地址？

robots.txt語法教程

從基礎(chǔ)到精通：認(rèn)識網(wǎng)站301重定向的那些事

什么是絕對地址和相對地址？

什么是絕對地址和相對地址？

更多您感興趣的搜索

什么是絕對地址和相對地址？

什么是絕對地址和相對地址？