Qt C++ 显示多级结构体，包括结构体名、变量名和值

QTreeView 和 QStandardItemModel 来实现。以下是实现这一功能的步骤和示例代码：

定义多级结构体：
假设你有一个多级结构体，如下所示：

struct SubStruct {int subValue1;QString subValue2;
};struct MainStruct {int mainValue1;QString mainValue2;SubStruct subStruct;
};

以下是完整的示例代码：

mainwindow.h

// mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H#include <QMainWindow>
#include <QStandardItemModel>
#include <QTreeView>#include "structures.h" // 假设结构体定义在这个头文件中class MainWindow : public QMainWindow
{Q_OBJECTpublic:MainWindow(QWidget *parent = nullptr);~MainWindow();private:QTreeView *treeView;QStandardItemModel *model;void populateTree(const MainStruct &mainStruct, QStandardItem *parentItem);
};

mainwindow.cpp

#endif // MAINWINDOW_H
// mainwindow.cpp
#include "mainwindow.h"MainWindow::MainWindow(QWidget *parent): QMainWindow(parent)
{treeView = new QTreeView(this);setCentralWidget(treeView);model = new QStandardItemModel(this);treeView->setModel(model);MainStruct mainStruct;mainStruct.mainValue1 = 10;mainStruct.mainValue2 = "Main Value 2";mainStruct.subStruct.subValue1 = 20;mainStruct.subStruct.subValue2 = "Sub Value 2";QStandardItem *rootItem = model->invisibleRootItem();populateTree(mainStruct, rootItem);
}MainWindow::~MainWindow()
{
}void MainWindow::populateTree(const MainStruct &mainStruct, QStandardItem *parentItem)
{QStandardItem *mainStructItem = new QStandardItem("MainStruct");parentItem->appendRow(mainStructItem);QStandardItem *mainValue1Item = new QStandardItem("mainValue1");mainValue1Item->appendRow(new QStandardItem(QString::number(mainStruct.mainValue1)));mainStructItem->appendRow(mainValue1Item);QStandardItem *mainValue2Item = new QStandardItem("mainValue2");mainValue2Item->appendRow(new QStandardItem(mainStruct.mainValue2));mainStructItem->appendRow(mainValue2Item);QStandardItem *subStructItem = new QStandardItem("SubStruct");mainStructItem->appendRow(subStructItem);QStandardItem *subValue1Item = new QStandardItem("subValue1");subValue1Item->appendRow(new QStandardItem(QString::number(mainStruct.subStruct.subValue1)));subStructItem->appendRow(subValue1Item);QStandardItem *subValue2Item = new QStandardItem("subValue2");subValue2Item->appendRow(new QStandardItem(mainStruct.subStruct.subValue2));subStructItem->appendRow(subValue2Item);
}

structures.h

// structures.h
#ifndef STRUCTURES_H
#define STRUCTURES_H#include <QString>struct SubStruct {int subValue1;QString subValue2;
};struct MainStruct {int mainValue1;QString mainValue2;SubStruct subStruct;
};#endif // STRUCTURES_H

main.cpp

// main.cpp
#include <QApplication>
#include "mainwindow.h"int main(int argc, char *argv[])
{QApplication app(argc, argv);MainWindow window;window.show();return app.exec();
}