什么是组件？

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组件 (Component) 是 Vue.js 最强大的功能之一。组件可以扩展 HTML 元素，封装可重用的代码。在较高层面上，组件是自定义元素，Vue.js 的编译器为它添加特殊功能。在有些情况下，组件也可以是原生 HTML 元素的形式，以 is 特性扩展。

我知道vue中核心就是组件，但是组件是什么呢？组件有什么用呢？

这里来说说怎么用组件？怎么样创建自己的组件？：

1）创建自己的组件

通过vue.extend("template");通过vue构造器去拓展一个模板，然后注册，最后使用。

  
    
    
    
  
  
　　  
    
这是一个全局注册的
    

      
    
  







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请求信息 : 2026-05-25 04:38:26 HTTP/1.1 GET : /article/hpjpd.html
运行时间 : 2.1466s ( Load:0.0062s Init:1.4892s Exec:0.6418s Template:0.0094s )
吞吐率 : 0.47req/s
内存开销 : 2,221.65 kb
查询信息 : 12 queries 5 writes 
文件加载 : 36
缓存信息 : 0 gets 0 writes 
配置加载 : 130
会话信息 : SESSION_ID=o5n7q4gbtdec2fd7g06c6co0l2
    
    
        

    

	
/www/wwwroot/tsicrk.com/index.php ( 1.09 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/ThinkPHP.php ( 4.61 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Think.class.php ( 12.26 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Storage.class.php ( 1.37 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Storage/Driver/File.class.php ( 3.52 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Mode/common.php ( 2.82 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Common/functions.php ( 53.56 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Hook.class.php ( 4.01 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/App.class.php ( 13.49 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Dispatcher.class.php ( 14.79 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Route.class.php ( 13.36 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Controller.class.php ( 11.23 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/View.class.php ( 7.59 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/BuildLiteBehavior.class.php ( 3.68 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ParseTemplateBehavior.class.php ( 3.88 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ContentReplaceBehavior.class.php ( 1.91 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Conf/convention.php ( 11.15 KB )
/www/wwwroot/tsicrk.com/App/Common/Conf/config.php ( 2.14 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Lang/zh-cn.php ( 2.55 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Conf/debug.php ( 1.49 KB )
/www/wwwroot/tsicrk.com/App/Home/Conf/config.php ( 0.31 KB )
/www/wwwroot/tsicrk.com/App/Home/Common/function.php ( 3.33 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ReadHtmlCacheBehavior.class.php ( 5.62 KB )
/www/wwwroot/tsicrk.com/App/Home/Controller/ArticleController.class.php ( 6.02 KB )
/www/wwwroot/tsicrk.com/App/Home/Controller/CommController.class.php ( 1.60 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Model.class.php ( 60.11 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php ( 32.43 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db/Driver/Pdo.class.php ( 16.74 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Cache.class.php ( 3.83 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Cache/Driver/File.class.php ( 5.87 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Template.class.php ( 28.16 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Template/TagLib/Cx.class.php ( 22.40 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Template/TagLib.class.php ( 9.16 KB )
/www/wwwroot/tsicrk.com/App/Runtime/Cache/Home/7540f392f42b28b481b30614275e4e55.php ( 17.71 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/WriteHtmlCacheBehavior.class.php ( 0.97 KB )
/www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ShowPageTraceBehavior.class.php ( 5.24 KB )
    
    
        

    

	
[ app_init ] --START--
Run Behavior\BuildLiteBehavior [ RunTime:0.000005s ]
[ app_init ] --END-- [ RunTime:0.000026s ]
[ app_begin ] --START--
Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000267s ]
[ app_begin ] --END-- [ RunTime:0.000285s ]
[ view_parse ] --START--
[ template_filter ] --START--
Run Behavior\ContentReplaceBehavior [ RunTime:0.000049s ]
[ template_filter ] --END-- [ RunTime:0.000070s ]
Run Behavior\ParseTemplateBehavior [ RunTime:0.006056s ]
[ view_parse ] --END-- [ RunTime:0.006082s ]
[ view_filter ] --START--
Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000157s ]
[ view_filter ] --END-- [ RunTime:0.000171s ]
[ app_end ] --START--
    
    
        

    

	
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  
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  
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= ) 
[8] Undefined index: pid /www/wwwroot/tsicrk.com/App/Home/Controller/ArticleController.class.php 第 47 行.
[8] Undefined index: db_host /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 120 行.
[8] Undefined index: db_port /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 121 行.
[8] Undefined index: db_name /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 122 行.
    
    
        

    

	    
    
        

    

	    
    
    



2.1466s