## No1.How to Create Qt Plugins ### 1、定义插件接口 ### 2、使用Q_DECLARE_INTERFACE()宏 tell Qt's meta-object system about the interface.Export the plugin using the Q_PLUGIN_METADATA() macro. ### 3、QPluginLoader加载插件 ### 4、qobject_cast()测试接口实现 ## No2.How to Deb