# QButtonGroup Class Reference
## [[QtGui](index.htm) module]
該QButtonGroup類提供一個容器來組織按鈕控件組。[More...](#details)
繼承[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
該QButtonGroup類提供一個容器來組織按鈕控件組。
QButtonGroup提供了一個抽象的容器,其中按鈕控件可以放置。它不提供此容器的可視化表示(見[QGroupBox](qgroupbox.html)對于一個容器控件) ,而是管理組中每個按鈕的狀態。
一個[exclusive](qbuttongroup.html#exclusive-prop)按鈕組關閉所有可復(切換)按鈕,除了被點擊的之一。默認情況下,一個按鈕組是獨占的。在一個按鈕組中的按鈕通常是可復[QPushButton](qpushbutton.html)的,[QCheckBox](qcheckbox.html)ES (通常用于非排他性按鈕組) ,或[QRadioButton](qradiobutton.html)秒。如果你創建一個專屬按鈕組,你應該確保該組中的一個按鈕初步檢查,否則,本集團將首先在沒有任何按鍵被選中的狀態。
按鈕添加到組[addButton](qbuttongroup.html#addButton)( ) 。它可以從組中刪除[removeButton](qbuttongroup.html#removeButton)( ) 。如果該組是獨占的,目前檢查按鈕,可作為[checkedButton](qbuttongroup.html#checkedButton)( ) 。如果點擊一個按鈕[buttonClicked](qbuttongroup.html#buttonClicked)()信號被發射。對于獨家組可檢查的按鈕,這意味著被選中的按鈕。組中的按鈕列表是由返回[buttons](qbuttongroup.html#buttons)( ) 。
此外, QButtonGroup可以整數和按鈕之間進行映射。您可以指定一個整數ID的按鈕[setId](qbuttongroup.html#setId)( ),并與檢索[id](qbuttongroup.html#id)( ) 。當前選中按鈕的ID可與[checkedId](qbuttongroup.html#checkedId)( ) ,并有一個重載信號[buttonClicked](qbuttongroup.html#buttonClicked)(),它發射的按鈕的ID。這個id`-1`由QButtonGroup保留的意思是“沒有這樣的按鈕” 。映射機制的目的是簡化枚舉值中的用戶接口的表示。
* * *
## Method Documentation
```
QButtonGroup.__init__ (self, QObject?parent?=?None)
```
該_parent_的說法,如果不是沒有,原因_self_通過Qt的,而不是PyQt的擁有。
構造一個新的空按鈕組給定的_parent_。
**See also** [addButton](qbuttongroup.html#addButton)()和[setExclusive](qbuttongroup.html#exclusive-prop)( ) 。
```
QButtonGroup.addButton (self, QAbstractButton)
```
將給定_button_以本集團內部的按鈕列表的末尾。一個ID將這個被分配到按鈕[QButtonGroup](qbuttongroup.html)。自動分配的ID都保證是負的,從-2 。如果您還指定自己的ID,請使用正確的價值觀,以避免沖突。
**See also** [removeButton](qbuttongroup.html#removeButton)()和[buttons](qbuttongroup.html#buttons)( ) 。
```
QButtonGroup.addButton (self, QAbstractButton, int?id)
```
將給定_button_在按鈕組中,與給定_id_。建議在分配唯一積極的IDS 。
**See also** [removeButton](qbuttongroup.html#removeButton)()和[buttons](qbuttongroup.html#buttons)( ) 。
```
QAbstractButton QButtonGroup.button (self, int?id)
```
[
返回按鈕具有指定_id_,或者0,如果沒有這樣的按鈕存在。
這個函數是Qt 4.1中引入。
```
list-of-QAbstractButton QButtonGroup.buttons (self)
```
返回該組的按鈕列表。這可能是空的。
](qabstractbutton.html)
[**See also**](qabstractbutton.html) [addButton](qbuttongroup.html#addButton)()和[removeButton](qbuttongroup.html#removeButton)( ) 。
```
QAbstractButton QButtonGroup.checkedButton (self)
```
[
返回按鈕組的檢查按鈕,或者0,如果沒有按鈕被選中。
](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,如果檢查沒有按鈕。
這個函數是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,如果沒有這樣的按鈕存在。
這個函數是Qt 4.1中引入。
**See also** [setId](qbuttongroup.html#setId)( ) 。
```
QButtonGroup.removeButton (self, QAbstractButton)
```
刪除給定的_button_從按鈕組。
**See also** [addButton](qbuttongroup.html#addButton)()和[buttons](qbuttongroup.html#buttons)( ) 。
```
QButtonGroup.setExclusive (self, bool)
```
```
QButtonGroup.setId (self, QAbstractButton?button, int?id)
```
設置_id_為指定的_button_。需要注意的是_id_不能為-1。
這個函數是Qt 4.1中引入。
**See also** [id](qbuttongroup.html#id)( ) 。
* * *
## Qt Signal Documentation
```
void buttonClicked (QAbstractButton *)
```
這是該信號的默認超載。
這個信號被發射給定的時_button_被點擊。當它第一次按下一個按鈕被點擊,然后釋放,當它的快捷鍵鍵入,或編程時[QAbstractButton.click](qabstractbutton.html#click)()或[QAbstractButton.animateClick](qabstractbutton.html#animateClick)()被調用。
**See also** [checkedButton](qbuttongroup.html#checkedButton)()和[QAbstractButton.clicked](qabstractbutton.html#clicked)( ) 。
```
void buttonClicked (int)
```
這個信號被發射時,在給定的一個按鈕_id_被點擊。
**See also** [checkedButton](qbuttongroup.html#checkedButton)()和[QAbstractButton.clicked](qabstractbutton.html#clicked)( ) 。
```
void buttonPressed (QAbstractButton *)
```
這是該信號的默認超載。
這個信號被發射給定的時_button_被按下。
這個函數中引入了Qt 4.2中。
**See also** [QAbstractButton.pressed](qabstractbutton.html#pressed)( ) 。
```
void buttonPressed (int)
```
這個信號被發射時,在給定的一個按鈕_id_被按下。
這個函數中引入了Qt 4.2中。
**See also** [QAbstractButton.pressed](qabstractbutton.html#pressed)( ) 。
```
void buttonReleased (QAbstractButton *)
```
這是該信號的默認超載。
這個信號被發射給定的時_button_被釋放。
這個函數中引入了Qt 4.2中。
**See also** [QAbstractButton.released](qabstractbutton.html#released)( ) 。
```
void buttonReleased (int)
```
這個信號被發射時,在給定的一個按鈕_id_被釋放。
這個函數中引入了Qt 4.2中。
**See also** [QAbstractButton.released](qabstractbutton.html#released)( ) 。
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- QTextBrowser Class Reference
- QTextCharFormat Class Reference
- QTextCodec Class Reference
- QTextCursor Class Reference
- QTextDecoder Class Reference
- QTextDocument Class Reference
- QTextDocumentFragment Class Reference
- QTextDocumentWriter Class Reference
- QTextEdit Class Reference
- QTextEncoder Class Reference
- QTextFormat Class Reference
- QTextFragment Class Reference
- QTextFrame Class Reference
- QTextFrameFormat Class Reference
- QTextImageFormat Class Reference
- QTextInlineObject Class Reference
- QTextItem Class Reference
- QTextLayout Class Reference
- QTextLength Class Reference
- QTextLine Class Reference
- QTextList Class Reference
- 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