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#pragma once
#include <QAbstractTableModel>
#include <QModelIndex>
#include <QVariant>
#include <vector>class QtTableModel : public QAbstractTableModel {Q_OBJECTpublic:QtTableModel(QObject* parent = nullptr) : QAbstractTableModel(parent) {}~QtTableModel();void setData(const std::vector<std::vector<QVariant>>& data) {beginResetModel();this->data_ = data;rowCount_ = data.size();columnCount_ = !data.empty() ? data[0].size() : 0;endResetModel();}int rowCount(const QModelIndex& parent = QModelIndex()) const override {if (!parent.isValid()) {return rowCount_;}return 0;}int columnCount(const QModelIndex& parent = QModelIndex()) const override {if (!parent.isValid()) {return columnCount_;}return 0;}QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override {if (!index.isValid() || role != Qt::DisplayRole) {return QVariant();}return data_[index.row()][index.column()];}QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override {if (role != Qt::DisplayRole) {return QVariant();}if (orientation == Qt::Horizontal) {// 返回列头数据，这里可以自定义return QString("Column %1").arg(section + 1);}else {// 返回行头数据，这里可以自定义return QString("Row %1").arg(section + 1);}}private:std::vector<std::vector<QVariant>> data_;int rowCount_;int columnCount_;
};
//
//#include <QAbstractTableModel>
//#include <QVector>
//#include <QString>
//class QtTabModel  : public QAbstractTableModel
//{
//	Q_OBJECT
//
//public:
//	//QtTabModel(QObject *parent);
//    QtTabModel(QObject* parent = nullptr) : QAbstractTableModel(parent) {};
//	~QtTabModel();
//    // 必须实现的方法
//    int rowCount(const QModelIndex& parent = QModelIndex()) const override 
//    {
//        Q_UNUSED(parent);
//        return m_data.count();
//    }
//
//    int columnCount(const QModelIndex& parent = QModelIndex()) const override 
//    {
//        Q_UNUSED(parent);
//        return m_columnNames.count();
//    }
//
//    QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override
//    {
//        if (!index.isValid() || m_data.isEmpty())
//            return QVariant();
//
//        if (role == Qt::DisplayRole) {
//            return m_data.at(index.row()).at(index.column());
//        }
//        return QVariant();
//    }
//    // 添加数据的方法
//    void addRow(const QVector<QString>& row) {
//        beginInsertRows(QModelIndex(), rowCount(), rowCount());
//        m_data.append(row);
//        endInsertRows();
//    }
//    // 设置列名
//    void setColumnNames(const QStringList& columnNames) {
//        m_columnNames = columnNames;
//    }
//private:
//    QVector<QVector<QString>> m_data; // 存储表格数据的二维向量
//    QStringList m_columnNames; // 存储列名的列表
//};

 

#include "QtTabModel.h"//QtTabModel::QtTabModel(QObject *parent)//: QAbstractTableModel(parent)
//{}//QtTabModel(QObject* parent = nullptr) : QAbstractTableModel(parent) {}QtTableModel::~QtTableModel()
{}

QT使用QAbstractTableModel 0x8读取访问权限冲突 - txwtech - 博客园

QtTableModel* model;

model = new QtTableModel(); //如果未初始化，则会报错