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什么是JavaScript

JavaScript是一种基于对象和事件驱动的、并具有安全性能的脚本语言，已经被广泛用于Web应用开发，常用来为网页添加各式各样的动态功能，为用户提供更流畅美观的浏览效果。通常JavaScript脚本是通过嵌入在HTML中来实现自身的功能的。

JavaScript特点

JavaScript组成

JavaScript日常用途

JavaScript的基本结构

示例：

可以包含在文档中的任何地方，只要保证这些代码在被使用前已读取并加载到内存即可

JavaScript的执行原理

网页中引用JavaScript的方式

1.使用

基本 文件 流程 错误 SQL 调试

1. 请求信息 : 2026-05-26 00:07:01 HTTP/1.1 GET : /article/jodegj.html
2. 运行时间 : 0.2370s ( Load:0.0021s Init:0.0010s Exec:0.0267s Template:0.2072s )
3. 吞吐率 : 4.22req/s
4. 内存开销 : 480.63 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=ichfg1dsa715v8oij5dip6qta2

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

1. [ app_init ] --START--
2. Run Behavior\BuildLiteBehavior [ RunTime:0.000018s ]
3. [ app_init ] --END-- [ RunTime:0.000085s ]
4. [ app_begin ] --START--
5. Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000110s ]
6. [ app_begin ] --END-- [ RunTime:0.000155s ]
7. [ view_parse ] --START--
8. [ template_filter ] --START--
9. Run Behavior\ContentReplaceBehavior [ RunTime:0.000085s ]
10. [ template_filter ] --END-- [ RunTime:0.000131s ]
11. Run Behavior\ParseTemplateBehavior [ RunTime:0.206360s ]
12. [ view_parse ] --END-- [ RunTime:0.206422s ]
13. [ view_filter ] --START--
14. Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000107s ]
15. [ view_filter ] --END-- [ RunTime:0.000133s ]
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/bluegullmediac/wwwroot/App/Home/Controller/ArticleController.class.php 第 47 行.
5. [8] Undefined index: db_host /home/wwwroot/bluegullmediac/wwwroot/ThinkPHP/Library/Think/Db.class.php 第 120 行.
6. [8] Undefined index: db_port /home/wwwroot/bluegullmediac/wwwroot/ThinkPHP/Library/Think/Db.class.php 第 121 行.
7. [8] Undefined index: db_name /home/wwwroot/bluegullmediac/wwwroot/ThinkPHP/Library/Think/Db.class.php 第 122 行.

0.2370s