QDomDocumentFragment 類

QDomDocumentFragment 類 QDomNode 樹通常是不完整 QDomDocument . 更多...

頭：	`#include <QDomDocumentFragment>`
CMake:	`find_package(Qt6 REQUIRED COMPONENTS Xml)` `target_link_libraries(mytarget PRIVATE Qt6::Xml)`
qmake:	`QT += xml`
繼承：	QDomNode

所有成員列錶，包括繼承成員
QDomDocumentFragment is part of XML 類 .

注意： 此類的所有函數可重入 .

公共函數

	QDomDocumentFragment ()
	QDomDocumentFragment (const QDomDocumentFragment & documentFragment )
QDomNode::NodeType	nodeType () const
QDomDocumentFragment &	operator= (const QDomDocumentFragment & other )

詳細描述

If you want to do complex tree operations it is useful to have a lightweight class to store nodes and their relations. QDomDocumentFragment stores a subtree of a document which does not necessarily represent a well-formed XML document.

QDomDocumentFragment is also useful if you want to group several nodes in a list and insert them all together as children of some node. In these cases QDomDocumentFragment can be used as a temporary container for this list of children.

The most important feature of QDomDocumentFragment is that it is treated in a special way by QDomNode::insertAfter (), QDomNode::insertBefore (), QDomNode::replaceChild () 和 QDomNode::appendChild ()：代替插入片段本身，插入所有片段的子級。

成員函數文檔編製

QDomDocumentFragment:: QDomDocumentFragment ()

構造空文檔片段。

QDomDocumentFragment:: QDomDocumentFragment (const QDomDocumentFragment & documentFragment )

構造副本為 documentFragment .

拷貝數據是共享的 (淺拷貝)：修改一節點也會改變另一節點。若想要做深拷貝，使用 cloneNode ().

QDomNode::NodeType QDomDocumentFragment:: nodeType () const

返迴 DocumentFragment .

另請參閱 isDocumentFragment () 和 QDomNode::toDocumentFragment ().

QDomDocumentFragment &QDomDocumentFragment:: operator= (const QDomDocumentFragment & other )

賦值 other 到此 DOM 文檔片段。

拷貝數據是共享的 (淺拷貝)：修改一節點也會改變另一節點。若想要做深拷貝，使用 cloneNode ().