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经典正则表达式

（1）验证邮箱： ^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$ （2）验证身份证： ^\d{15}|\d{18}$ （3）验证电话号码： ^0\d{2,3}-\d{5,9}$

Public @ 2023-03-02 12:48:07

搜索引擎友好的网站设计

搜索引擎友好的网站设计是指在网站设计中考虑和优化搜索引擎对网站内容的索引和排名。这样可以帮助网站在搜索引擎结果页面上获得更高的曝光和更多的流量。以下是一些搜索引擎友好的网站设计的要点： 1.优化网站结构：使用清晰的导航菜单、内部链接和友好的URL结构来帮助搜索引擎索引网站的主要内容。 2.关键词优化：在网站内容中使用相关的关键词和关键词短语，但要确保关键词的使用自然并符合用户的需求。 3.页

Public @ 2023-06-30 17:50:21

什么是域名

威海网站建设威海域名
2466

通俗点说，域名就是对ip地址的解析。如果没有域名，我们访问网站只能通过一些ip地址访问了，例如：123.456.789.134。这样的ip是很难记住的，所以我们要通过记住域名来访问网站。比如：www.aizhan.com就是一个域名。

Public @ 2012-07-28 16:00:32

经典正则表达式

1. 匹配任意字符的通配符: `.` 例：`a.b` 可匹配 "aab", "acb", "a#b" 等。 2. 匹配指定字符集合中任意字符: `[]` 例：`[abc]` 可匹配 "a", "b", "c"。 3. 匹配指定字符范围内任意字符: `-` 例：`[a-z]` 可匹配任意小写字母。 4. 匹配非指定字符: `[^]` 例：`[^a-z]` 可匹配任意非小写字母的字符。 5.

Public @ 2023-06-03 00:00:36

经典正则表达式

以下是一些经典的正则表达式： 1. 匹配一个邮箱地址： ``` ^\w+@[a-zA-Z_]+?\.[a-zA-Z]{2,3}$ ``` 2. 匹配一个URL： ``` ^https?://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?$ ``` 3. 匹配一个IP地址： ``` ^(25[0-5]|2[0-4]\d|[0-1]?\d{1,2})(\.(25[0-5

Public @ 2023-04-06 06:50:16

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.028090s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_config` [ RunTime:0.019891s ]
[ SQL ] SELECT * FROM `ob_config` [ RunTime:0.019139s ]
[ 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:0.019755s ]
[ SQL ] SELECT `id`,`name`,`addon_list` FROM `ob_hook` [ RunTime:0.018845s ]
[ 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:0.019935s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 6163 LIMIT 1 [ RunTime:0.019023s ]
[ 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:0.019173s ]
[ 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:0.019396s ]
[ 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:0.019933s ]
[ 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` = 6163 LIMIT 1 [ RunTime:0.018837s ]
[ 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=6163 [ RunTime:0.022477s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站建设' AND `status` <> -1 LIMIT 1 [ RunTime:0.025877s ]
[ 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` = '威海网站建设' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.045849s ]
[ 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` = '威海正则表达式' AND `status` <> -1 LIMIT 1 [ RunTime:0.028608s ]
[ 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` = '威海正则表达式' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.043393s ]
[ 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', ) ]

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