使用Qt靜態庫為什麽運行出錯

把 main.cpp 改成下面這樣，再重新編譯項目就可以了：

#include <QApplication>

#include <QQmlApplicationEngine>

//1. add headers

#include <QtPlugin>

#include <QtQml>

//2. add Q_IMPORT_PLUGIN

#if defined(QT_STATIC) && !defined(Q_OS_MAC) && !defined(QT_NAMESPACE)

#include <QQmlExtensionPlugin>

Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)

Q_IMPORT_PLUGIN(QtQuick2Plugin)

Q_IMPORT_PLUGIN(QtQuickControlsPlugin)

Q_IMPORT_PLUGIN(QtQuickLayoutsPlugin)

Q_IMPORT_PLUGIN(QtQuick2WindowPlugin)

#endif

int main(int argc, char *argv[])

{

QApplication app(argc, argv);

QQmlApplicationEngine engine;

//3. registerTypes

#if defined(QT_STATIC) && !defined(Q_OS_MAC) && !defined(QT_NAMESPACE)

qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuick2Plugin().instance())->registerTypes("QtQuick");

qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickControlsPlugin().instance())->registerTypes("QtQuick.Controls");

qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickControlsPlugin().instance())->registerTypes("QtQuick.Controls.Private");

qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickControlsPlugin().instance())->registerTypes("QtQuick.Controls.Styles");

qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickLayoutsPlugin().instance()) ->registerTypes("QtQuick.Layouts");

qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuick2WindowPlugin().instance()) ->registerTypes("QtQuick.Window.2");

qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuick2Plugin().instance()) ->initializeEngine( &engine, "QtQuick");

qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickControlsPlugin().instance())->initializeEngine( &engine, "QtQuick.Controls");

qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickLayoutsPlugin().instance()) ->initializeEngine( &engine, "QtQuick.Layouts");

qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuickLayoutsPlugin().instance()) ->initializeEngine( &engine, "QtQuick.Layouts");

qobject_cast<QQmlExtensionPlugin*>(qt_static_plugin_QtQuick2WindowPlugin().instance()) ->initializeEngine( &engine, "QtQuick.Window.2");

#endif

engine.load(QUrl(QStringLiteral("qrc:/main.qml")));

return app.exec();

}

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