代码：

//treeWidget树控件
    //1：设置头部标签 QStringList()匿名对象创建
    ui->treeWidget->setHeaderLabels(QStringList()<<"英雄"<<"英雄介绍");


    //2：设置item
    QTreeWidgetItem * liItem = new QTreeWidgetItem(QStringList()<<"力量");
    QTreeWidgetItem * minItem = new QTreeWidgetItem(QStringList()<<"敏捷");
    QTreeWidgetItem * zhiItem = new QTreeWidgetItem(QStringList()<<"智力");
    //添加顶层级别的item
    ui->treeWidget->addTopLevelItem(liItem);
    ui->treeWidget->addTopLevelItem(minItem);
    ui->treeWidget->addTopLevelItem(zhiItem);


    //3：创建子item并挂在到顶层item上
    QStringList heroL1;
    heroL1<<"英雄1"<<"技能描述技能描述技能描述技能描述";
    QStringList heroL2;
    heroL2<<"英雄2"<<"技能描述技能描述技能描述技能描述";
    
    QTreeWidgetItem * l1 = new QTreeWidgetItem(heroL1);
    liItem->addChild(l1);
    QTreeWidgetItem * l2 = new QTreeWidgetItem(heroL2);
    liItem->addChild(l2);

展示：