QTreeWidget的使用方法及设置列表项不可选和编辑

 使用到QTreeWidget做总结，以便下次使用。

QTreeWidget CalibrationWidget = new QTreeWidget;
CalibrationWidget->setColumnCount(2); //将treewidget设置为两列
CalibrationWidget->setColumnWidth(0, 155); //设置指定列宽
CalibrationWidget->setItemsExpandable(true); //设置默认为展开
QStringList m_header;
m_header<setHeaderLabels(m_header); //设置标题头
QStringList dynamic;
dynamic<

1、删除所有子列表项

QList QTreeWidgetItem::takeChildren() //删除所有子列表项

 Removes the list of children and returns it, otherwise returns an empty list.

2、删除指定子列表项

void QTreeWidgetItem::removeChild(QTreeWidgetItem * child) //删除指定子列表项 
Removes the given item indicated by child. The removed item will not be deleted.

3、删除指定索引的子列表项

QTreeWidgetItem * QTreeWidgetItem::takeChild(int index) //删除指定索引的子列表项
 Removes the item at index and returns it, otherwise return 0.

4、添加子列表项

void QTreeWidgetItem::addChild(QTreeWidgetItem * child) //添加子列表项 
Appends the child item to the list of children.

5、添加多条子列表项

void QTreeWidgetItem::addChildren(const QList & children) //添加多条子列表项 
Appends the given list of children to the item.

6、设置treewidget字体样式及treewidget头字体样式

QTreeWidget->setFont(QFont("微软雅黑", 12, QFont::Normal, false));
QTreeWidget->headerItem()->setFont(0, QFont("微软雅黑", 12, QFont::Normal, false));//设置treewidget头字体格式