# QXmlStreamNamespaceDeclaration Class Reference
## [[QtCore](index.htm) module]
该QXmlStreamNamespaceDeclaration类表示一个命名空间声明。[More...](#details)
### Methods
* `__init__ (self)`
* `__init__ (self, QXmlStreamNamespaceDeclaration)`
* `__init__ (self, QString prefix, QString namespaceUri)`
* `QStringRef namespaceUri (self)`
* `QStringRef prefix (self)`
### Special Methods
* `bool __eq__ (self, QXmlStreamNamespaceDeclaration other)`
* `bool __ne__ (self, QXmlStreamNamespaceDeclaration other)`
* * *
## Detailed Description
该QXmlStreamNamespaceDeclaration类表示一个命名空间声明。
一个命名空间声明包含一个[prefix](qxmlstreamnamespacedeclaration.html#prefix)（）和一个[namespaceUri](qxmlstreamnamespacedeclaration.html#namespaceUri)（ ） 。
* * *
## Method Documentation
```
QXmlStreamNamespaceDeclaration.__init__ (self)
```
创建一个空的命名空间声明。
```
QXmlStreamNamespaceDeclaration.__init__ (self, QXmlStreamNamespaceDeclaration)
```
创建副本_other_。
```
QXmlStreamNamespaceDeclaration.__init__ (self, QString prefix, QString namespaceUri)
```
创建一个命名空间声明与_prefix_和_namespaceUri_。
此功能被引入Qt的4.4 。
```
QStringRef QXmlStreamNamespaceDeclaration.namespaceUri (self)
```
返回的namespaceURI 。
```
QStringRef QXmlStreamNamespaceDeclaration.prefix (self)
```
返回前缀。
```
bool QXmlStreamNamespaceDeclaration.__eq__ (self, QXmlStreamNamespaceDeclaration other)
```
```
bool QXmlStreamNamespaceDeclaration.__ne__ (self, QXmlStreamNamespaceDeclaration other)
```
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