..\..\..\3rdparty\phonon\ds9\backend.cpp(69) : error C3861: 'qt_plugin_instance': identifier not found 将'qt_plugin_instance' 改为qt_plugin_instance_phonon_ds9即可
可以变通解决这个问题，获取 instance 的对象后，对象提供一个创建该对象的方法。及通过该单实例创建出多实例。QPluginLoader pluginLoader(pluginFullPathName);QObject *plugin = pluginLoader.instance();if (plugin){ ProjectPluginBase* projectInstance = static_cast<ProjectPluginBase*>(plugin);if (...