qt create 给table widget表构造数据

要给Qt中的QTableWidget构造数据，你可以使用以下步骤：

1. 创建QTableWidget对象并设置行数和列数：

QTableWidget *tableWidget = new QTableWidget();
tableWidget->setRowCount(5);
tableWidget->setColumnCount(3);

2. 设置表头：

QStringList headerLabels;
headerLabels << "Name" << "Age" << "Gender";
tableWidget->setHorizontalHeaderLabels(headerLabels);

3. 填充单元格数据：

tableWidget->setItem(0, 0, new QTableWidgetItem("John"));
tableWidget->setItem(0, 1, new QTableWidgetItem("30"));
tableWidget->setItem(0, 2, new QTableWidgetItem("Male"));

tableWidget->setItem(1, 0, new QTableWidgetItem("Mary"));
tableWidget->setItem(1, 1, new QTableWidgetItem("25"));
tableWidget->setItem(1, 2, new QTableWidgetItem("Female"));

// 依此类推

完整示例代码如下：

#include <QtWidgets/QApplication>
#include <QtWidgets/QTableWidget>
#include <QtWidgets/QTableWidgetItem>

int main(int argc, char *argv[]) {
    QApplication app(argc, argv);

    QTableWidget *tableWidget = new QTableWidget();
    tableWidget->setRowCount(5);
    tableWidget->setColumnCount(3);

    QStringList headerLabels;
    headerLabels << "Name" << "Age" << "Gender";
    tableWidget->setHorizontalHeaderLabels(headerLabels);

    tableWidget->setItem(0, 0, new QTableWidgetItem("John"));
    tableWidget->setItem(0, 1, new QTableWidgetItem("30"));
    tableWidget->setItem(0, 2, new QTableWidgetItem("Male"));

    tableWidget->setItem(1, 0, new QTableWidgetItem("Mary"));
    tableWidget->setItem(1, 1, new QTableWidgetItem("25"));
    tableWidget->setItem(1, 2, new QTableWidgetItem("Female"));

    // 依此类推

    tableWidget->show();

    return app.exec();
}