如何在html中引入 js和css文件？针对这个问题，今天小编总结这篇html中引入js和css文件方法的文章，希望对大家有所帮助。

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外部样式表

当样式需要应用于很多页面时，外部样式表将是理想的选择。在使用外部样式表的情况下，你可以通过改变一个文件来改变整个站点的外观。每个页面使用 标签链接到样式表。 标签在（文档的）头部：

浏览器会从文件 mystyle.css 中读到样式声明，并根据它来格式文档。

外部样式表可以在任何文本编辑器中进行编辑。文件不能包含任何的 html 标签。样式表应该以 .css 扩展名进行保存。

多重样式优先级

样式表允许以多种方式规定样式信息。样式可以规定在单个的 HTML 元素中，在 HTML 页的头元素中，或在一个外部的 CSS 文件中。甚至可以在同一个 HTML 文档内部引用多个外部样式表。

一般情况下，优先级如下：

内联样式）Inline style > （内部样式）Internal style sheet >（外部样式）External style sheet > 浏览器默认样式

HTML 中的脚本必须位于 标签之间。

脚本可被放置在 HTML 页面的 和 部分中。

外部的 JavaScript

也可以把脚本保存到外部文件中。外部文件通常包含被多个网页使用的代码。

外部 JavaScript 文件的文件扩展名是 .js。

如需使用外部文件，请在

你可以将脚本放置于 或者 中，放在

基本 文件 流程 错误 SQL 调试

1. 请求信息 : 2026-05-11 12:59:19 HTTP/1.1 GET : /article/ijdjso.html
2. 运行时间 : 0.0343s ( Load:0.0011s Init:0.0006s Exec:0.0270s Template:0.0056s )
3. 吞吐率 : 29.15req/s
4. 内存开销 : 467.84 kb
5. 查询信息 : 12 queries 5 writes
6. 文件加载 : 36
7. 缓存信息 : 0 gets 0 writes
8. 配置加载 : 130
9. 会话信息 : SESSION_ID=r2ek601prge9shdca445c0lij1

1. /home/wwwroot/bluegullmedia/wwwroot/index.php ( 1.09 KB )
2. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/ThinkPHP.php ( 4.61 KB )
3. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Think.class.php ( 12.26 KB )
4. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Storage.class.php ( 1.37 KB )
5. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Storage/Driver/File.class.php ( 3.52 KB )
6. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Mode/common.php ( 2.82 KB )
7. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Common/functions.php ( 53.56 KB )
8. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Hook.class.php ( 4.01 KB )
9. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/App.class.php ( 13.49 KB )
10. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Dispatcher.class.php ( 14.79 KB )
11. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Route.class.php ( 13.36 KB )
12. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Controller.class.php ( 11.23 KB )
13. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/View.class.php ( 7.59 KB )
14. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Behavior/BuildLiteBehavior.class.php ( 3.68 KB )
15. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Behavior/ParseTemplateBehavior.class.php ( 3.88 KB )
16. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Behavior/ContentReplaceBehavior.class.php ( 1.91 KB )
17. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Conf/convention.php ( 11.15 KB )
18. /home/wwwroot/bluegullmedia/wwwroot/App/Common/Conf/config.php ( 2.16 KB )
19. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Lang/zh-cn.php ( 2.55 KB )
20. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Conf/debug.php ( 1.49 KB )
21. /home/wwwroot/bluegullmedia/wwwroot/App/Home/Conf/config.php ( 0.31 KB )
22. /home/wwwroot/bluegullmedia/wwwroot/App/Home/Common/function.php ( 3.33 KB )
23. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Behavior/ReadHtmlCacheBehavior.class.php ( 5.62 KB )
24. /home/wwwroot/bluegullmedia/wwwroot/App/Home/Controller/ArticleController.class.php ( 6.02 KB )
25. /home/wwwroot/bluegullmedia/wwwroot/App/Home/Controller/CommController.class.php ( 1.60 KB )
26. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Model.class.php ( 60.11 KB )
27. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Db.class.php ( 32.43 KB )
28. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Db/Driver/Pdo.class.php ( 16.74 KB )
29. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Cache.class.php ( 3.83 KB )
30. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Cache/Driver/File.class.php ( 5.87 KB )
31. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Template.class.php ( 28.16 KB )
32. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Template/TagLib/Cx.class.php ( 22.40 KB )
33. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Template/TagLib.class.php ( 9.16 KB )
34. /home/wwwroot/bluegullmedia/wwwroot/App/Runtime/Cache/Home/7540f392f42b28b481b30614275e4e55.php ( 18.20 KB )
35. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Behavior/WriteHtmlCacheBehavior.class.php ( 0.97 KB )
36. /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Behavior/ShowPageTraceBehavior.class.php ( 5.24 KB )

1. [ app_init ] --START--
2. Run Behavior\BuildLiteBehavior [ RunTime:0.000011s ]
3. [ app_init ] --END-- [ RunTime:0.000053s ]
4. [ app_begin ] --START--
5. Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000064s ]
6. [ app_begin ] --END-- [ RunTime:0.000088s ]
7. [ view_parse ] --START--
8. [ template_filter ] --START--
9. Run Behavior\ContentReplaceBehavior [ RunTime:0.000073s ]
10. [ template_filter ] --END-- [ RunTime:0.000108s ]
11. Run Behavior\ParseTemplateBehavior [ RunTime:0.004983s ]
12. [ view_parse ] --END-- [ RunTime:0.005016s ]
13. [ view_filter ] --START--
14. Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000059s ]
15. [ view_filter ] --END-- [ RunTime:0.000074s ]
16. [ app_end ] --START--

1. 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1 [ SQL语句 ] : SELECT `id`,`pid`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1
2. 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1 [ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1
3. 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1 [ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( pid= )
4. [8] Undefined index: pid /home/wwwroot/bluegullmedia/wwwroot/App/Home/Controller/ArticleController.class.php 第 47 行.
5. [2] mkdir(): Permission denied /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Cache/Driver/File.class.php 第 59 行.
6. [2] mkdir(): Permission denied /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Cache/Driver/File.class.php 第 59 行.
7. [8] Undefined index: db_host /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Db.class.php 第 120 行.
8. [8] Undefined index: db_port /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Db.class.php 第 121 行.
9. [8] Undefined index: db_name /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Db.class.php 第 122 行.

0.0343s