问题描述 Linux下 QT 连接 Mysql 出现问题 QSqlDatabase: QMYSQL driver not loaded QSqlDatabase: available drivers: QSQLITE QMYSQL QMYSQL3 QPSQL QPSQL7 QSqlDatabase: an instance of QCoreApplication is required for loading driver plugin 这是什么原因??http://blog.csdn.net/