Python 一个窗口中有多个QButtonGroup

我正在用PyQt编写一个向导。在第一页，我想让用户在两个选项中选择两次。 因此，我决定做按钮组。但是，尽管我将前两个单选按钮添加到第一个Buttongroup，将另外两个添加到第二个Buttongroup，但这些按钮仍然是独占的（我只能在页面上选择一个按钮）

这是我的密码：

    # Setup UI
    layout = QtGui.QVBoxLayout()

    gBBackupFromIntExt = QtGui.QGroupBox()
    layout.addWidget(gBBackupFromIntExt)

    bGBackupFromIntExt = QtGui.QButtonGroup()

    self.rBBackupFromExt = QtGui.QRadioButton()
    bGBackupFromIntExt.addButton (self.rBBackupFromExt)
    layout.addWidget(self.rBBackupFromExt)

    self.rBBackupFromInt = QtGui.QRadioButton()
    bGBackupFromIntExt.addButton (self.rBBackupFromInt)
    layout.addWidget(self.rBBackupFromInt)

    gBBackupToIntExt = QtGui.QGroupBox()
    layout.addWidget(gBBackupToIntExt)

    bGBackupToIntExt = QtGui.QButtonGroup()

    self.rBBackupToExt = QtGui.QRadioButton()
    bGBackupToIntExt.addButton (self.rBBackupToExt)
    layout.addWidget(self.rBBackupToExt)

    self.rBBackupToInt = QtGui.QRadioButton()
    bGBackupToIntExt.addButton (self.rBBackupToInt)
    layout.addWidget(self.rBBackupToInt)

---

你知道我的错误在哪里吗？我必须改变什么吗？

问题是QButtonGroup从未成为层次结构的一部分，因此它们没有任何效果

顺便说一句：发布代码时，请尝试添加必要的部分以使其可运行：

from PyQt4 import QtGui
import sys

class Test(QtGui.QWidget):
    def __init__(self):
        super().__init__()
        layout = QtGui.QVBoxLayout(self)

        gBBackupFromIntExt = QtGui.QGroupBox()
        layout.addWidget(gBBackupFromIntExt)

        bGBackupFromIntExt = QtGui.QButtonGroup(self)

        self.rBBackupFromExt = QtGui.QRadioButton()
        bGBackupFromIntExt.addButton(self.rBBackupFromExt)
        layout.addWidget(self.rBBackupFromExt)

        self.rBBackupFromInt = QtGui.QRadioButton()
        bGBackupFromIntExt.addButton(self.rBBackupFromInt)
        layout.addWidget(self.rBBackupFromInt)

        gBBackupToIntExt = QtGui.QGroupBox()
        layout.addWidget(gBBackupToIntExt)

        bGBackupToIntExt = QtGui.QButtonGroup(self)

        self.rBBackupToExt = QtGui.QRadioButton()
        bGBackupToIntExt.addButton (self.rBBackupToExt)
        layout.addWidget(self.rBBackupToExt)

        self.rBBackupToInt = QtGui.QRadioButton()
        bGBackupToIntExt.addButton (self.rBBackupToInt)
        layout.addWidget(self.rBBackupToInt)

a = QtGui.QApplication(sys.argv)
t = Test()
t.show()
a.exec()

---

这应该可以解决问题。

问题是QButtonGroup从来都不是层次结构的一部分，因此它们没有任何效果

顺便说一句：发布代码时，请尝试添加必要的部分以使其可运行：

from PyQt4 import QtGui
import sys

class Test(QtGui.QWidget):
    def __init__(self):
        super().__init__()
        layout = QtGui.QVBoxLayout(self)

        gBBackupFromIntExt = QtGui.QGroupBox()
        layout.addWidget(gBBackupFromIntExt)

        bGBackupFromIntExt = QtGui.QButtonGroup(self)

        self.rBBackupFromExt = QtGui.QRadioButton()
        bGBackupFromIntExt.addButton(self.rBBackupFromExt)
        layout.addWidget(self.rBBackupFromExt)

        self.rBBackupFromInt = QtGui.QRadioButton()
        bGBackupFromIntExt.addButton(self.rBBackupFromInt)
        layout.addWidget(self.rBBackupFromInt)

        gBBackupToIntExt = QtGui.QGroupBox()
        layout.addWidget(gBBackupToIntExt)

        bGBackupToIntExt = QtGui.QButtonGroup(self)

        self.rBBackupToExt = QtGui.QRadioButton()
        bGBackupToIntExt.addButton (self.rBBackupToExt)
        layout.addWidget(self.rBBackupToExt)

        self.rBBackupToInt = QtGui.QRadioButton()
        bGBackupToIntExt.addButton (self.rBBackupToInt)
        layout.addWidget(self.rBBackupToInt)

a = QtGui.QApplication(sys.argv)
t = Test()
t.show()
a.exec()

---

这应该可以解决问题。

非常感谢您的回答和有关未来帖子的信息，现在它可以正常工作了！对于其他人：解决方案是在按钮组的括号中添加“self”（即bgbackuptinext=QtGui.QButtonGroup（self））非常感谢你的回答和关于未来帖子的信息，现在它工作正常了！对于其他人：解决方案是在按钮组的括号中添加“self”（即bgbackuptinext=QtGui.QButtonGroup（self）