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    QDomDocument

    QDomNode

    继承者: QDomDocument , QDomDocumentType , QDomProcessingInstruction , QDomEntityReference , QDomEntity , QDomNotation , QDomElement , QDomAttr , QDomCharacterData , QDomComment , QDomText , QDomCDATASection , QDomDocumentFragment

    概要

    函数

    详细描述

    PySide.QtXml.QDomNode class is the base class for all the nodes in a DOM tree.

    Many functions in the DOM return a PySide.QtXml.QDomNode .

    You can find out the type of a node using PySide.QtXml.QDomNode.isAttr() , PySide.QtXml.QDomNode.isCDATASection() , PySide.QtXml.QDomNode.isDocumentFragment() , PySide.QtXml.QDomNode.isDocument() , PySide.QtXml.QDomNode.isDocumentType() , PySide.QtXml.QDomNode.isElement() , PySide.QtXml.QDomNode.isEntityReference() , PySide.QtXml.QDomNode.isText() , PySide.QtXml.QDomNode.isEntity() , PySide.QtXml.QDomNode.isNotation() , PySide.QtXml.QDomNode.isProcessingInstruction() , PySide.QtXml.QDomNode.isCharacterData() and PySide.QtXml.QDomNode.isComment() .

    A PySide.QtXml.QDomNode can be converted into one of its subclasses using PySide.QtXml.QDomNode.toAttr() , PySide.QtXml.QDomNode.toCDATASection() , PySide.QtXml.QDomNode.toDocumentFragment() , PySide.QtXml.QDomNode.toDocument() , PySide.QtXml.QDomNode.toDocumentType() , PySide.QtXml.QDomNode.toElement() , PySide.QtXml.QDomNode.toEntityReference() , PySide.QtXml.QDomNode.toText() , PySide.QtXml.QDomNode.toEntity() , PySide.QtXml.QDomNode.toNotation() , PySide.QtXml.QDomNode.toProcessingInstruction() , PySide.QtXml.QDomNode.toCharacterData() or PySide.QtXml.QDomNode.toComment() . You can convert a node to a null node with PySide.QtXml.QDomNode.clear() .

    Copies of the PySide.QtXml.QDomNode class share their data using explicit sharing. This means that modifying one node will change all copies. This is especially useful in combination with functions which return a PySide.QtXml.QDomNode , e.g. PySide.QtXml.QDomNode.firstChild() . You can make an independent (deep) copy of the node with PySide.QtXml.QDomNode.cloneNode() .

    A PySide.QtXml.QDomNode can be null, much like a null pointer. Creating a copy of a null node results in another null node. It is not possible to modify a null node, but it is possible to assign another, possibly non-null node to it. In this case, the copy of the null node will remain null. You can check if a PySide.QtXml.QDomNode is null by calling PySide.QtXml.QDomNode.isNull() . The empty constructor of a PySide.QtXml.QDomNode (or any of the derived classes) creates a null node.

    Nodes are inserted with PySide.QtXml.QDomNode.insertBefore() , PySide.QtXml.QDomNode.insertAfter() or PySide.QtXml.QDomNode.appendChild() . You can replace one node with another using PySide.QtXml.QDomNode.replaceChild() and remove a node with PySide.QtXml.QDomNode.removeChild() .

    To traverse nodes use PySide.QtXml.QDomNode.firstChild() to get a node's first child (if any), and PySide.QtXml.QDomNode.nextSibling() to traverse. PySide.QtXml.QDomNode also provides PySide.QtXml.QDomNode.lastChild() , PySide.QtXml.QDomNode.previousSibling() and PySide.QtXml.QDomNode.parentNode() . To find the first child node with a particular node name use PySide.QtXml.QDomNode.namedItem() .

    To find out if a node has children use PySide.QtXml.QDomNode.hasChildNodes() and to get a list of all of a node's children use PySide.QtXml.QDomNode.childNodes() .

    The node's name and value (the meaning of which varies depending on its type) is returned by PySide.QtXml.QDomNode.nodeName() and PySide.QtXml.QDomNode.nodeValue() respectively. The node's type is returned by PySide.QtXml.QDomNode.nodeType() . The node's value can be set with PySide.QtXml.QDomNode.setNodeValue() .

    The document to which the node belongs is returned by PySide.QtXml.QDomNode.ownerDocument() .

    Adjacent PySide.QtXml.QDomText nodes can be merged into a single node with PySide.QtXml.QDomNode.normalize() .

    PySide.QtXml.QDomElement nodes have attributes which can be retrieved with PySide.QtXml.QDomNode.attributes() .

    PySide.QtXml.QDomElement and PySide.QtXml.QDomAttr nodes can have namespaces which can be retrieved with PySide.QtXml.QDomNode.namespaceURI() . Their local name is retrieved with PySide.QtXml.QDomNode.localName() , and their prefix with PySide.QtXml.QDomNode.prefix() . The prefix can be set with PySide.QtXml.QDomNode.setPrefix() .

    You can write the XML representation of the node to a text stream with PySide.QtXml.QDomNode.save() .

    The following example looks for the first element in an XML document and prints the names of all the elements that are its direct children.

    d = QDomDocument()
    d.setContent(someXML)
    n = d.firstChild()
    while !n.isNull():
        if n.isElement():
            e = n.toElement()
            print "Element name: %s" % e.tagName()
            break
        n = n.nextSibling()
    									

    For further information about the Document Object Model see Level 1 and Level 2 Core. For a more general introduction of the DOM implementation see the PySide.QtXml.QDomDocument 文档编制。

    class PySide.QtXml. QDomNode
    class PySide.QtXml. QDomNode ( arg__1 )
    参数: arg__1 PySide.QtXml.QDomNode

    构造 null node.

    构造副本为 n .

    The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use PySide.QtXml.QDomNode.cloneNode() .

    PySide.QtXml.QDomNode. NodeType

    This enum defines the type of the node:

    常量 描述
    QDomNode.ElementNode  
    QDomNode.AttributeNode  
    QDomNode.TextNode  
    QDomNode.CDATASectionNode  
    QDomNode.EntityReferenceNode  
    QDomNode.EntityNode  
    QDomNode.ProcessingInstructionNode  
    QDomNode.CommentNode  
    QDomNode.DocumentNode  
    QDomNode.DocumentTypeNode  
    QDomNode.DocumentFragmentNode  
    QDomNode.NotationNode  
    QDomNode.BaseNode A PySide.QtXml.QDomNode object, i.e. not a PySide.QtXml.QDomNode subclass.
    QDomNode.CharacterDataNode  
    PySide.QtXml.QDomNode. EncodingPolicy

    This enum specifies how QDomNode.save() determines what encoding to use when serializing.

    常量 描述
    QDomNode.EncodingFromDocument The encoding is fetched from the document.
    QDomNode.EncodingFromTextStream The encoding is fetched from the PySide.QtCore.QTextStream .

    See also the overload of the PySide.QtXml.QDomNode.save() function that takes an QDomNode.EncodingPolicy .

    PySide.QtXml.QDomNode. appendChild ( newChild )
    参数: newChild PySide.QtXml.QDomNode
    返回类型: PySide.QtXml.QDomNode

    追加 newChild as the node's last child.

    newChild is the child of another node, it is reparented to this node. If newChild is a child of this node, then its position in the list of children is changed.

    newChild PySide.QtXml.QDomDocumentFragment , then the children of the fragment are removed from the fragment and appended.

    newChild PySide.QtXml.QDomElement and this node is a PySide.QtXml.QDomDocument that already has an element node as a child, newChild is not added as a child and a null node is returned.

    Returns a new reference to newChild on success or a null node on failure.

    Calling this function on a null node(created, for example, with the default constructor) does nothing and returns a null node .

    The DOM specification disallow inserting attribute nodes, but for historical reasons, QDom accepts them anyway.

    PySide.QtXml.QDomNode. attributes ( )
    返回类型: PySide.QtXml.QDomNamedNodeMap

    Returns a named node map of all attributes. Attributes are only provided for PySide.QtXml.QDomElement s.

    Changing the attributes in the map will also change the attributes of this PySide.QtXml.QDomNode .

    PySide.QtXml.QDomNode. childNodes ( )
    返回类型: PySide.QtXml.QDomNodeList

    Returns a list of all direct child nodes.

    Most often you will call this function on a PySide.QtXml.QDomElement 对象。

    For example, if the XML document looks like this:

    <body>
    <h1>Heading</h1>
    <p>Hello <b>you</b></p>
    </body>
    										

    Then the list of child nodes for the “body”-element will contain the node created by the &lt;h1&gt; tag and the node created by the &lt;p&gt; tag.

    The nodes in the list are not copied; so changing the nodes in the list will also change the children of this node.

    PySide.QtXml.QDomNode. clear ( )

    Converts the node into a null node; if it was not a null node before, its type and contents are deleted.

    PySide.QtXml.QDomNode. cloneNode ( [ deep=true ] )
    参数: deep PySide.QtCore.bool
    返回类型: PySide.QtXml.QDomNode

    Creates a deep (not shallow) copy of the PySide.QtXml.QDomNode .

    deep is true, then the cloning is done recursively which means that all the node's children are deep copied too. If deep is false only the node itself is copied and the copy will have no child nodes.

    PySide.QtXml.QDomNode. columnNumber ( )
    返回类型: PySide.QtCore.int

    For nodes created by QDomDocument.setContent() , this function returns the column number in the XML document where the node was parsed. Otherwise, -1 is returned.

    PySide.QtXml.QDomNode. firstChild ( )
    返回类型: PySide.QtXml.QDomNode

    Returns the first child of the node. If there is no child node, a null node is returned. Changing the returned node will also change the node in the document tree.

    PySide.QtXml.QDomNode. firstChildElement ( [ tagName="" ] )
    参数: tagName – unicode
    返回类型: PySide.QtXml.QDomElement

    Returns the first child element with tag name tagName if tagName is non-empty; otherwise returns the first child element. Returns a null element if no such child exists.

    PySide.QtXml.QDomNode. hasAttributes ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node has attributes; otherwise returns false.

    PySide.QtXml.QDomNode. hasChildNodes ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node has one or more children; otherwise returns false.

    PySide.QtXml.QDomNode. insertAfter ( newChild , refChild )
    参数:
    返回类型:

    PySide.QtXml.QDomNode

    Inserts the node newChild after the child node refChild . refChild must be a direct child of this node. If refChild is null then newChild is appended as this node's last child.

    newChild is the child of another node, it is reparented to this node. If newChild is a child of this node, then its position in the list of children is changed.

    newChild PySide.QtXml.QDomDocumentFragment , then the children of the fragment are removed from the fragment and inserted after refChild .

    Returns a new reference to newChild on success or a null node on failure.

    The DOM specification disallow inserting attribute nodes, but due to historical reasons QDom accept them nevertheless.

    PySide.QtXml.QDomNode. insertBefore ( newChild , refChild )
    参数:
    返回类型:

    PySide.QtXml.QDomNode

    Inserts the node newChild before the child node refChild . refChild must be a direct child of this node. If refChild is null then newChild is inserted as the node's first child.

    newChild is the child of another node, it is reparented to this node. If newChild is a child of this node, then its position in the list of children is changed.

    newChild PySide.QtXml.QDomDocumentFragment , then the children of the fragment are removed from the fragment and inserted before refChild .

    Returns a new reference to newChild on success or a null node on failure.

    The DOM specification disallow inserting attribute nodes, but due to historical reasons QDom accept them nevertheless.

    PySide.QtXml.QDomNode. isAttr ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is an attribute; otherwise returns false.

    If this function returns true, it does not imply that this object is a QDomAttribute; you can get the QDomAttribute with toAttribute().

    PySide.QtXml.QDomNode. isCDATASection ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is a CDATA section; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomCDATASection ; you can get the PySide.QtXml.QDomCDATASection with PySide.QtXml.QDomNode.toCDATASection() .

    PySide.QtXml.QDomNode. isCharacterData ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is a character data node; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomCharacterData ; you can get the PySide.QtXml.QDomCharacterData with PySide.QtXml.QDomNode.toCharacterData() .

    PySide.QtXml.QDomNode. isComment ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is a comment; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomComment ; you can get the PySide.QtXml.QDomComment with PySide.QtXml.QDomNode.toComment() .

    PySide.QtXml.QDomNode. isDocument ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is a document; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomDocument ; you can get the PySide.QtXml.QDomDocument with PySide.QtXml.QDomNode.toDocument() .

    PySide.QtXml.QDomNode. isDocumentFragment ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is a document fragment; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomDocumentFragment ; you can get the PySide.QtXml.QDomDocumentFragment with PySide.QtXml.QDomNode.toDocumentFragment() .

    PySide.QtXml.QDomNode. isDocumentType ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is a document type; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomDocumentType ; you can get the PySide.QtXml.QDomDocumentType with PySide.QtXml.QDomNode.toDocumentType() .

    PySide.QtXml.QDomNode. isElement ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is an element; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomElement ; you can get the PySide.QtXml.QDomElement with PySide.QtXml.QDomNode.toElement() .

    PySide.QtXml.QDomNode. isEntity ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is an entity; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomEntity ; you can get the PySide.QtXml.QDomEntity with PySide.QtXml.QDomNode.toEntity() .

    PySide.QtXml.QDomNode. isEntityReference ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is an entity reference; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomEntityReference ; you can get the PySide.QtXml.QDomEntityReference with PySide.QtXml.QDomNode.toEntityReference() .

    PySide.QtXml.QDomNode. isNotation ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is a notation; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomNotation ; you can get the PySide.QtXml.QDomNotation with PySide.QtXml.QDomNode.toNotation() .

    PySide.QtXml.QDomNode. isNull ( )
    返回类型: PySide.QtCore.bool

    Returns true if this node is null (i.e. if it has no type or contents); otherwise returns false.

    PySide.QtXml.QDomNode. isProcessingInstruction ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is a processing instruction; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomProcessingInstruction ; you can get the QProcessingInstruction with PySide.QtXml.QDomNode.toProcessingInstruction() .

    PySide.QtXml.QDomNode. isSupported ( feature , version )
    参数:
    • feature – unicode
    • version – unicode
    返回类型:

    PySide.QtCore.bool

    Returns true if the DOM implementation implements the feature feature and this feature is supported by this node in the version version ;否则返回 false。

    PySide.QtXml.QDomNode. isText ( )
    返回类型: PySide.QtCore.bool

    Returns true if the node is a text node; otherwise returns false.

    If this function returns true, it does not imply that this object is a PySide.QtXml.QDomText ; you can get the PySide.QtXml.QDomText with PySide.QtXml.QDomNode.toText() .

    PySide.QtXml.QDomNode. lastChild ( )
    返回类型: PySide.QtXml.QDomNode

    Returns the last child of the node. If there is no child node, a null node is returned. Changing the returned node will also change the node in the document tree.

    PySide.QtXml.QDomNode. lastChildElement ( [ tagName="" ] )
    参数: tagName – unicode
    返回类型: PySide.QtXml.QDomElement

    Returns the last child element with tag name tagName if tagName is non-empty; otherwise returns the last child element. Returns a null element if no such child exists.

    PySide.QtXml.QDomNode. lineNumber ( )
    返回类型: PySide.QtCore.int

    For nodes created by QDomDocument.setContent() , this function returns the line number in the XML document where the node was parsed. Otherwise, -1 is returned.

    PySide.QtXml.QDomNode. localName ( )
    返回类型: unicode

    If the node uses namespaces, this function returns the local name of the node; otherwise it returns an empty string.

    Only nodes of type ElementNode or AttributeNode can have namespaces. A namespace must have been specified at creation time; it is not possible to add a namespace afterwards.

    QDomDocument.createAttributeNS()

    PySide.QtXml.QDomNode. namedItem ( name )
    参数: name – unicode
    返回类型: PySide.QtXml.QDomNode

    Returns the first direct child node for which PySide.QtXml.QDomNode.nodeName() equals name .

    If no such direct child exists, a null node 被返回。

    PySide.QtXml.QDomNode. namespaceURI ( )
    返回类型: unicode

    Returns the namespace URI of this node or an empty string if the node has no namespace URI.

    Only nodes of type ElementNode or AttributeNode can have namespaces. A namespace URI must be specified at creation time and cannot be changed later.

    QDomDocument.createAttributeNS()

    PySide.QtXml.QDomNode. nextSibling ( )
    返回类型: PySide.QtXml.QDomNode

    Returns the next sibling in the document tree. Changing the returned node will also change the node in the document tree.

    If you have XML like this:

    <h1>Heading</h1>
    <p>The text...</p>
    <h2>Next heading</h2>
    										

    and this PySide.QtXml.QDomNode represents the <p> tag, PySide.QtXml.QDomNode.nextSibling() will return the node representing the <h2> tag.

    PySide.QtXml.QDomNode. nextSiblingElement ( [ taName="" ] )
    参数: taName – unicode
    返回类型: PySide.QtXml.QDomElement

    Returns the next sibling element with tag name tagName if tagName is non-empty; otherwise returns any next sibling element. Returns a null element if no such sibling exists.

    PySide.QtXml.QDomNode. nodeName ( )
    返回类型: unicode

    Returns the name of the node.

    The meaning of the name depends on the subclass:

    Name 含义
    PySide.QtXml.QDomAttr The name of the attribute
    PySide.QtXml.QDomCDATASection The string “#cdata-section”
    PySide.QtXml.QDomComment The string “#comment”
    PySide.QtXml.QDomDocument The string “#document”
    PySide.QtXml.QDomDocumentFragment The string “#document-fragment”
    PySide.QtXml.QDomDocumentType The name of the document type
    PySide.QtXml.QDomElement The tag name
    PySide.QtXml.QDomEntity The name of the entity
    PySide.QtXml.QDomEntityReference The name of the referenced entity
    PySide.QtXml.QDomNotation The name of the notation
    PySide.QtXml.QDomProcessingInstruction The target of the processing instruction
    PySide.QtXml.QDomText The string “#text”

    注意

    This function does not take the presence of namespaces into account when processing the names of element and attribute nodes. As a result, the returned name can contain any namespace prefix that may be present. To obtain the node name of an element or attribute, use PySide.QtXml.QDomNode.localName() ; to obtain the namespace prefix, use PySide.QtXml.QDomNode.namespaceURI() .

    PySide.QtXml.QDomNode. nodeType ( )
    返回类型: PySide.QtXml.QDomNode.NodeType

    Returns the type of the node.

    PySide.QtXml.QDomNode. nodeValue ( )
    返回类型: unicode

    Returns the value of the node.

    The meaning of the value depends on the subclass:

    Name 含义
    PySide.QtXml.QDomAttr The attribute value
    PySide.QtXml.QDomCDATASection The content of the CDATA section
    PySide.QtXml.QDomComment The comment
    PySide.QtXml.QDomProcessingInstruction The data of the processing instruction
    PySide.QtXml.QDomText The text

    All the other subclasses do not have a node value and will return an empty string.

    PySide.QtXml.QDomNode. normalize ( )

    调用 PySide.QtXml.QDomNode.normalize() on an element converts all its children into a standard form. This means that adjacent PySide.QtXml.QDomText objects will be merged into a single text object ( PySide.QtXml.QDomCDATASection nodes are not merged).

    PySide.QtXml.QDomNode. __ne__ ( arg__1 )
    参数: arg__1 PySide.QtXml.QDomNode
    返回类型: PySide.QtCore.bool

    Returns true if n and this DOM node are not equal; otherwise returns false.

    PySide.QtXml.QDomNode. __eq__ ( arg__1 )
    参数: arg__1 PySide.QtXml.QDomNode
    返回类型: PySide.QtCore.bool

    Returns true if n and this DOM node are equal; otherwise returns false.

    Any instance of PySide.QtXml.QDomNode acts as a reference to an underlying data structure in PySide.QtXml.QDomDocument . The test for equality checks if the two references point to the same underlying node. For example:

    QDomDocument document
    QDomElement element1 = document.documentElement()
    QDomElement element2 = element1
    										

    The two nodes ( PySide.QtXml.QDomElement PySide.QtXml.QDomNode subclass) both refer to the document's root element, and element1 == element2 will return true. On the other hand:

    QDomElement element3 = document.createElement("MyElement")
    QDomElement element4 = document.createElement("MyElement")
    										

    Even though both nodes are empty elements carrying the same name, element3 == element4 will return false because they refer to two different nodes in the underlying data structure.

    PySide.QtXml.QDomNode. ownerDocument ( )
    返回类型: PySide.QtXml.QDomDocument

    Returns the document to which this node belongs.

    PySide.QtXml.QDomNode. parentNode ( )
    返回类型: PySide.QtXml.QDomNode

    Returns the parent node. If this node has no parent, a null node is returned (i.e. a node for which PySide.QtXml.QDomNode.isNull() returns true).

    PySide.QtXml.QDomNode. prefix ( )
    返回类型: unicode

    Returns the namespace prefix of the node or an empty string if the node has no namespace prefix.

    Only nodes of type ElementNode or AttributeNode can have namespaces. A namespace prefix must be specified at creation time. If a node was created with a namespace prefix, you can change it later with PySide.QtXml.QDomNode.setPrefix() .

    If you create an element or attribute with QDomDocument.createElement() or QDomDocument.createAttribute() , the prefix will be an empty string. If you use QDomDocument.createElementNS() or QDomDocument.createAttributeNS() instead, the prefix will not be an empty string; but it might be an empty string if the name does not have a prefix.

    QDomDocument.createElementNS() QDomDocument.createAttributeNS()

    PySide.QtXml.QDomNode. previousSibling ( )
    返回类型: PySide.QtXml.QDomNode

    Returns the previous sibling in the document tree. Changing the returned node will also change the node in the document tree.

    For example, if you have XML like this:

    <h1>Heading</h1>
    <p>The text...</p>
    <h2>Next heading</h2>
    										

    and this PySide.QtXml.QDomNode represents the &lt;p&gt; tag, PySide.QtXml.QDomNode.previousSibling() will return the node representing the &lt;h1&gt; tag.

    PySide.QtXml.QDomNode. previousSiblingElement ( [ tagName="" ] )
    参数: tagName – unicode
    返回类型: PySide.QtXml.QDomElement

    Returns the previous sibilng element with tag name tagName if tagName is non-empty; otherwise returns any previous sibling element. Returns a null element if no such sibling exists.

    PySide.QtXml.QDomNode. removeChild ( oldChild )
    参数: oldChild PySide.QtXml.QDomNode
    返回类型: PySide.QtXml.QDomNode

    移除 oldChild from the list of children. oldChild must be a direct child of this node.

    Returns a new reference to oldChild on success or a null node on failure.

    PySide.QtXml.QDomNode. replaceChild ( newChild , oldChild )
    参数:
    返回类型:

    PySide.QtXml.QDomNode

    替换 oldChild with newChild . oldChild must be a direct child of this node.

    newChild is the child of another node, it is reparented to this node. If newChild is a child of this node, then its position in the list of children is changed.

    newChild PySide.QtXml.QDomDocumentFragment , then oldChild is replaced by all of the children of the fragment.

    Returns a new reference to oldChild on success or a null node an failure.

    PySide.QtXml.QDomNode. save ( arg__1 , arg__2 , arg__3 )
    参数:

    encodingPolicy is QDomNode.EncodingFromDocument , this function behaves as save( PySide.QtCore.QTextStream &str, int indent).

    encodingPolicy is EncodingFromTextStream and this node is a document node, this function behaves as save( PySide.QtCore.QTextStream &str, int indent) with the exception that the encoding specified in the text stream str 被使用。

    If the document contains invalid XML characters or characters that cannot be encoded in the given encoding, the result and behavior is undefined.

    PySide.QtXml.QDomNode. save ( arg__1 , arg__2 )
    参数:

    Writes the XML representation of the node and all its children to the stream str . This function uses indent as the amount of space to indent the node.

    If this node is a document node, the encoding of text stream str ‘s encoding is set by treating a processing instruction by name “xml” as an XML declaration, if such a one exists, and otherwise defaults to UTF-8. XML declarations are not processing instructions, but this behavior exists for historical reasons. If this node is not a document node, the text stream's encoding is used.

    If the document contains invalid XML characters or characters that cannot be encoded in the given encoding, the result and behavior is undefined.

    PySide.QtXml.QDomNode. setNodeValue ( arg__1 )
    参数: arg__1 – unicode

    Sets the node's value to v .

    PySide.QtXml.QDomNode. setPrefix ( pre )
    参数: pre – unicode

    If the node has a namespace prefix, this function changes the namespace prefix of the node to pre . Otherwise this function does nothing.

    Only nodes of type ElementNode or AttributeNode can have namespaces. A namespace prefix must have be specified at creation time; it is not possible to add a namespace prefix afterwards.

    QDomDocument.createElementNS() QDomDocument.createAttributeNS()

    PySide.QtXml.QDomNode. toAttr ( )
    返回类型: PySide.QtXml.QDomAttr

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomAttr . If the node is not an attribute, the returned object will be null .

    PySide.QtXml.QDomNode. toCDATASection ( )
    返回类型: PySide.QtXml.QDomCDATASection

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomCDATASection . If the node is not a CDATA section, the returned object will be null .

    PySide.QtXml.QDomNode. toCharacterData ( )
    返回类型: PySide.QtXml.QDomCharacterData

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomCharacterData . If the node is not a character data node the returned object will be null .

    PySide.QtXml.QDomNode. toComment ( )
    返回类型: PySide.QtXml.QDomComment

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomComment . If the node is not a comment the returned object will be null .

    PySide.QtXml.QDomNode. toDocument ( )
    返回类型: PySide.QtXml.QDomDocument

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomDocument . If the node is not a document the returned object will be null .

    PySide.QtXml.QDomNode. toDocumentFragment ( )
    返回类型: PySide.QtXml.QDomDocumentFragment

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomDocumentFragment . If the node is not a document fragment the returned object will be null .

    PySide.QtXml.QDomNode. toDocumentType ( )
    返回类型: PySide.QtXml.QDomDocumentType

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomDocumentType . If the node is not a document type the returned object will be null .

    PySide.QtXml.QDomNode. toElement ( )
    返回类型: PySide.QtXml.QDomElement

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomElement . If the node is not an element the returned object will be null .

    PySide.QtXml.QDomNode. toEntity ( )
    返回类型: PySide.QtXml.QDomEntity

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomEntity . If the node is not an entity the returned object will be null .

    PySide.QtXml.QDomNode. toEntityReference ( )
    返回类型: PySide.QtXml.QDomEntityReference

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomEntityReference . If the node is not an entity reference, the returned object will be null .

    PySide.QtXml.QDomNode. toNotation ( )
    返回类型: PySide.QtXml.QDomNotation

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomNotation . If the node is not a notation the returned object will be null .

    PySide.QtXml.QDomNode. toProcessingInstruction ( )
    返回类型: PySide.QtXml.QDomProcessingInstruction

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomProcessingInstruction . If the node is not a processing instruction the returned object will be null .

    PySide.QtXml.QDomNode. toText ( )
    返回类型: PySide.QtXml.QDomText

    Converts a PySide.QtXml.QDomNode into a PySide.QtXml.QDomText . If the node is not a text, the returned object will be null .