插件式网站，如 Joomla ， 不会的也麻烦请来顶顶人气， 级别低只能给一百分，没办法， 谢谢谢谢谢谢谢谢了。。。
joomla 插件式
鄙人.Net菜鸟程序员，更不懂PHP，最近被安排了解Joomla的插件式原理，谷哥度娘了几天没出结果，问：1. 它的插件式实现原理是什么？ 是否预留接口或触发器这类的东西，让别的部分调用？ 如果是， Joomla都预留了哪些接口或触发器？
2. 它的扩展部分，4种插件(不知道是不是组件、模块、插件、库)如何在系统运行
3. 它的样式单怎么替换实现换肤（这个我可能知道，因为自己也能做）
要在自己的.Net网站上使用类似这种Joomla的插件式方式来开发，所以要知道它是怎么实现的，而不是用Joomla搭建网站， 级别低只能给一百分，没办法， 谢谢了。
回复讨论(解决方案)
插件的本质是在不修改程序主体的情况下对软件功能进行加强。当插件的接口被公开时任何人都可以自己制作插件来解决一些操作上的不便或增加一些功能。一个插件框架包括两个部分：主程序(host)和插件((plug-in)。主程序即是“包含”插件的程序。插件必须实现若干标准接口，由主程序在与插件通信时调用。
对于你，可以看看这个 基于.NET反射技术的插件式GIS软件设计原理与实现
插件的本质是在不修改程序主体的情况下对软件功能进行加强。当插件的接口被公开时任何人都可以自己制作插件来解决一些操作上的不便或增加一些功能。一个插件框架包括两个部分：主程序(host)和插件((plug-in)。主程序即是“包含”插件的程序。插件必须实现若干标准接口，由主程序在与插件通信时调用。
对于你，可以看看这个 基于.NET反射技术的插件式GIS软件设计原理与实现
谢谢， 要是能详细点更好了
沉了？ 不会吧
哥们 其实说白了 很简单。
就是所有前台都继承了含有触发器的这个类
在页面运行的时候触发器触发器判断是否有插件也好，组件也好的东西需要运行，如果是那么就运行。
需要注意的就是触发器的在程序中的位置：运行前，运行后。
还有就是每个页面都可以绑定插件，这些记录都是存储在数据库中的
下载个现成的算了。
哥们 其实说白了 很简单。
就是所有前台都继承了含有触发器的这个类
在页面运行的时候触发器触发器判断是否有插件也好，组件也好的东西需要运行，如果是那么就运行。
需要注意的就是触发器的在程序中的位置：运行前，运行后。
还有就是每个页面都可以绑定插件，这些记录都是存储在数据库中的
又点点思路， 谢了！ 要是能详细点更好了
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