# QButtonGroup Class Reference
## [[QtGui](index.htm) module]
该QButtonGroup类提供一个容器来组织按钮控件组。[More...](#details)
继承[QObject](qobject.html)。
### Methods
* `__init__ (self, QObject parent = None)`
* `addButton (self, QAbstractButton)`
* `addButton (self, QAbstractButton, int id)`
* `QAbstractButton button (self, int id)`
* `list-of-QAbstractButton buttons (self)`
* `QAbstractButton checkedButton (self)`
* `int checkedId (self)`
* `bool exclusive (self)`
* `int id (self, QAbstractButton button)`
* `removeButton (self, QAbstractButton)`
* `setExclusive (self, bool)`
* `setId (self, QAbstractButton button, int id)`
### Qt Signals
* `void buttonClicked (QAbstractButton *)`
* `void buttonClicked (int)`
* `void buttonPressed (QAbstractButton *)`
* `void buttonPressed (int)`
* `void buttonReleased (QAbstractButton *)`
* `void buttonReleased (int)`
* * *
## Detailed Description
该QButtonGroup类提供一个容器来组织按钮控件组。
QButtonGroup提供了一个抽象的容器,其中按钮控件可以放置。它不提供此容器的可视化表示(见[QGroupBox](qgroupbox.html)对于一个容器控件) ,而是管理组中每个按钮的状态。
一个[exclusive](qbuttongroup.html#exclusive-prop)按钮组关闭所有可复(切换)按钮,除了被点击的之一。默认情况下,一个按钮组是独占的。在一个按钮组中的按钮通常是可复[QPushButton](qpushbutton.html)的,[QCheckBox](qcheckbox.html)ES (通常用于非排他性按钮组) ,或[QRadioButton](qradiobutton.html)秒。如果你创建一个专属按钮组,你应该确保该组中的一个按钮初步检查,否则,本集团将首先在没有任何按键被选中的状态。
按钮添加到组[addButton](qbuttongroup.html#addButton)( ) 。它可以从组中删除[removeButton](qbuttongroup.html#removeButton)( ) 。如果该组是独占的,目前检查按钮,可作为[checkedButton](qbuttongroup.html#checkedButton)( ) 。如果点击一个按钮[buttonClicked](qbuttongroup.html#buttonClicked)()信号被发射。对于独家组可检查的按钮,这意味着被选中的按钮。组中的按钮列表是由返回[buttons](qbuttongroup.html#buttons)( ) 。
此外, QButtonGroup可以整数和按钮之间进行映射。您可以指定一个整数ID的按钮[setId](qbuttongroup.html#setId)( ),并与检索[id](qbuttongroup.html#id)( ) 。当前选中按钮的ID可与[checkedId](qbuttongroup.html#checkedId)( ) ,并有一个重载信号[buttonClicked](qbuttongroup.html#buttonClicked)(),它发射的按钮的ID。这个id`-1`由QButtonGroup保留的意思是“没有这样的按钮” 。映射机制的目的是简化枚举值中的用户接口的表示。
* * *
## Method Documentation
```
QButtonGroup.__init__ (self, QObject parent = None)
```
该_parent_的说法,如果不是没有,原因_self_通过Qt的,而不是PyQt的拥有。
构造一个新的空按钮组给定的_parent_。
**See also** [addButton](qbuttongroup.html#addButton)()和[setExclusive](qbuttongroup.html#exclusive-prop)( ) 。
```
QButtonGroup.addButton (self, QAbstractButton)
```
将给定_button_以本集团内部的按钮列表的末尾。一个ID将这个被分配到按钮[QButtonGroup](qbuttongroup.html)。自动分配的ID都保证是负的,从-2 。如果您还指定自己的ID,请使用正确的价值观,以避免冲突。
**See also** [removeButton](qbuttongroup.html#removeButton)()和[buttons](qbuttongroup.html#buttons)( ) 。
```
QButtonGroup.addButton (self, QAbstractButton, int id)
```
将给定_button_在按钮组中,与给定_id_。建议在分配唯一积极的IDS 。
**See also** [removeButton](qbuttongroup.html#removeButton)()和[buttons](qbuttongroup.html#buttons)( ) 。
```
QAbstractButton QButtonGroup.button (self, int id)
```
[
返回按钮具有指定_id_,或者0,如果没有这样的按钮存在。
这个函数是Qt 4.1中引入。
```
list-of-QAbstractButton QButtonGroup.buttons (self)
```
返回该组的按钮列表。这可能是空的。
](qabstractbutton.html)
[**See also**](qabstractbutton.html) [addButton](qbuttongroup.html#addButton)()和[removeButton](qbuttongroup.html#removeButton)( ) 。
```
QAbstractButton QButtonGroup.checkedButton (self)
```
[
返回按钮组的检查按钮,或者0,如果没有按钮被选中。
](qabstractbutton.html)
[**See also**](qabstractbutton.html) [buttonClicked](qbuttongroup.html#buttonClicked)( ) 。
```
int QButtonGroup.checkedId (self)
```
返回的的ID[checkedButton](qbuttongroup.html#checkedButton)( ) ,或-1,如果检查没有按钮。
这个函数是Qt 4.1中引入。
**See also** [setId](qbuttongroup.html#setId)( ) 。
```
bool QButtonGroup.exclusive (self)
```
```
int QButtonGroup.id (self, QAbstractButton button)
```
返回的ID所指定_button_,或-1,如果没有这样的按钮存在。
这个函数是Qt 4.1中引入。
**See also** [setId](qbuttongroup.html#setId)( ) 。
```
QButtonGroup.removeButton (self, QAbstractButton)
```
删除给定的_button_从按钮组。
**See also** [addButton](qbuttongroup.html#addButton)()和[buttons](qbuttongroup.html#buttons)( ) 。
```
QButtonGroup.setExclusive (self, bool)
```
```
QButtonGroup.setId (self, QAbstractButton button, int id)
```
设置_id_为指定的_button_。需要注意的是_id_不能为-1。
这个函数是Qt 4.1中引入。
**See also** [id](qbuttongroup.html#id)( ) 。
* * *
## Qt Signal Documentation
```
void buttonClicked (QAbstractButton *)
```
这是该信号的默认超载。
这个信号被发射给定的时_button_被点击。当它第一次按下一个按钮被点击,然后释放,当它的快捷键键入,或编程时[QAbstractButton.click](qabstractbutton.html#click)()或[QAbstractButton.animateClick](qabstractbutton.html#animateClick)()被调用。
**See also** [checkedButton](qbuttongroup.html#checkedButton)()和[QAbstractButton.clicked](qabstractbutton.html#clicked)( ) 。
```
void buttonClicked (int)
```
这个信号被发射时,在给定的一个按钮_id_被点击。
**See also** [checkedButton](qbuttongroup.html#checkedButton)()和[QAbstractButton.clicked](qabstractbutton.html#clicked)( ) 。
```
void buttonPressed (QAbstractButton *)
```
这是该信号的默认超载。
这个信号被发射给定的时_button_被按下。
这个函数中引入了Qt 4.2中。
**See also** [QAbstractButton.pressed](qabstractbutton.html#pressed)( ) 。
```
void buttonPressed (int)
```
这个信号被发射时,在给定的一个按钮_id_被按下。
这个函数中引入了Qt 4.2中。
**See also** [QAbstractButton.pressed](qabstractbutton.html#pressed)( ) 。
```
void buttonReleased (QAbstractButton *)
```
这是该信号的默认超载。
这个信号被发射给定的时_button_被释放。
这个函数中引入了Qt 4.2中。
**See also** [QAbstractButton.released](qabstractbutton.html#released)( ) 。
```
void buttonReleased (int)
```
这个信号被发射时,在给定的一个按钮_id_被释放。
这个函数中引入了Qt 4.2中。
**See also** [QAbstractButton.released](qabstractbutton.html#released)( ) 。
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- QTextListFormat Class Reference
- QTextObject Class Reference
- QTextObjectInterface Class Reference
- QTextOption Class Reference
- QTextStream Class Reference
- QTextTable Class Reference
- QTextTableCell Class Reference
- QTextTableCellFormat Class Reference
- QTextTableFormat Class Reference
- QThread Class Reference
- QThreadPool Class Reference
- QTime Class Reference
- QTimeEdit Class Reference
- QTimeLine Class Reference
- QTimer Class Reference
- QTimerEvent Class Reference
- QToolBar Class Reference
- QToolBox Class Reference
- QToolButton Class Reference
- QToolTip Class Reference
- QTouchEvent Class Reference
- Reference
- QTransform Class Reference
- QTranslator Class Reference
- QTreeView Class Reference
- QTreeWidget Class Reference
- QTreeWidgetItem Class Reference
- QTreeWidgetItemIterator Class Reference
- QUdpSocket Class Reference
- QUndoCommand Class Reference
- QUndoGroup Class Reference
- QUndoStack Class Reference
- QUndoView Class Reference
- QUrl Class Reference
- QUrlInfo Class Reference
- QUuid Class Reference
- QValidator Class Reference
- QVariant Class Reference
- QVariantAnimation Class Reference
- QVBoxLayout Class Reference
- QVector2D Class Reference
- QVector3D Class Reference
- QVector4D Class Reference
- QVideoFrame Class Reference
- QVideoSurfaceFormat Class Reference
- QWaitCondition Class Reference
- QWebDatabase Class Reference
- QWebElement Class Reference
- QWebElementCollection Class Reference
- QWebFrame Class Reference
- QWebHistory Class Reference
- QWebHistoryInterface Class Reference
- QWebHistoryItem Class Reference
- QWebHitTestResult Class Reference
- QWebInspector Class Reference
- QWebPage Class Reference
- QWebPluginFactory Class Reference
- QWebSecurityOrigin Class Reference
- QWebSettings Class Reference
- QWebView Class Reference
- QWhatsThis Class Reference
- QWhatsThisClickedEvent Class Reference
- QWheelEvent Class Reference
- QWidget Class Reference
- QWidgetAction Class Reference
- QWidgetItem Class Reference
- QWindowStateChangeEvent Class Reference
- QWizard Class Reference
- QWizardPage Class Reference
- QWorkspace Class Reference
- QWriteLocker Class Reference
- QX11EmbedContainer Class Reference
- QX11EmbedWidget Class Reference
- QX11Info Class Reference
- QXmlAttributes Class Reference
- QXmlContentHandler Class Reference
- QXmlDeclHandler Class Reference
- QXmlDefaultHandler Class Reference
- QXmlDTDHandler Class Reference
- QXmlEntityResolver Class Reference
- QXmlErrorHandler Class Reference
- QXmlFormatter Class Reference
- QXmlInputSource Class Reference
- QXmlItem Class Reference
- QXmlLexicalHandler Class Reference
- QXmlLocator Class Reference
- QXmlName Class Reference
- QXmlNamePool Class Reference
- QXmlNamespaceSupport Class Reference
- QXmlNodeModelIndex Class Reference
- QXmlParseException Class Reference
- QXmlQuery Class Reference
- QXmlReader Class Reference
- QXmlResultItems Class Reference
- QXmlSchema Class Reference
- QXmlSchemaValidator Class Reference
- QXmlSerializer Class Reference
- QXmlSimpleReader Class Reference
- QXmlStreamAttribute Class Reference
- QXmlStreamAttributes Class Reference
- QXmlStreamEntityDeclaration Class Reference
- QXmlStreamEntityResolver Class Reference
- QXmlStreamNamespaceDeclaration Class Reference
- QXmlStreamNotationDeclaration Class Reference
- QXmlStreamReader Class Reference
- QXmlStreamWriter Class Reference