方法:
创造model类继承QSqlTableModel,然后重载data函数
头文件:
#ifndef INCOME_MODEL_H #define INCOME_MODEL_H #include <QSqlTableModel> class Income_Model : public QSqlTableModel { public: Income_Model(QObject * parent = 0, QSqlDatabase db = QSqlDatabase()); ~Income_Model(); QVariant data(const QModelIndex &idx, int role = Qt::DisplayRole) const