QDomDocumentFragment 類

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

頭：	#include <QDomDocumentFragment>
qmake:	QT += xml
繼承：	QDomNode

所有成員列錶，包括繼承成員

注意： 此類的所有函數可重入 .

公共函數

	QDomDocumentFragment (const QDomDocumentFragment & x )
	QDomDocumentFragment ()
QDomDocumentFragment &	operator= (const QDomDocumentFragment & x )
QDomNode::NodeType	nodeType () const

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 (const QDomDocumentFragment & x )

構造副本為 x .

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 ().

QDomDocumentFragment:: QDomDocumentFragment ()

構造空文檔片段。

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

賦值 x 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 ().

QDomNode::NodeType QDomDocumentFragment:: nodeType () const

返迴 DocumentFragment .

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