#pragma once #include #include #include "sqlitehelper.h" class ExitManager : public QObject { Q_OBJECT public: // 退出应用程序 void exit(int exitCode = 0) { SQLiteHelper sqlite_helper; sqlite_helper.db.close(); QSqlDatabase::removeDatabase("mydb"); // 发射退出应用程序信号 ::exit(exitCode); } };