python pyqt5 弹出框传递数据

对话框关闭时返回值给主窗口 例子

    # 在布局中添加部件
    layout = QVBoxLayout(self)
    self.datetime = QDateTimeEdit(self)
    self.datetime.setCalendarPopup(True)
    self.datetime.setDateTime(QDateTime.currentDateTime())
    layout.addWidget(self.datetime)

    # 使用两个button(ok和cancel)分别连接accept()和reject()槽函数
    buttons = QDialogButtonBox(
        QDialogButtonBox.Ok | QDialogButtonBox.Cancel,
        Qt.Horizontal, self)
    buttons.accepted.connect(self.accept)
    buttons.rejected.connect(self.reject)
    layout.addWidget(buttons)

# 从对话框中获取当前日期和时间
def dateTime(self):
    return self.datetime.dateTime()

# 静态方法创建对话框并返回 (date, time, accepted)
@staticmethod
def getDateTime(parent=None):
    dialog = DateDialog(parent)
    result = dialog.exec_()
    date = dialog.dateTime()
    return (date.date(), date.time(), result == QDialog.Accepted)

    self.lineEdit = QLineEdit(self)
    self.button1 = QPushButton('弹出对话框1')
    self.button1.clicked.connect(self.onButton1Click)

    self.button2 = QPushButton('弹出对话框2')
    self.button2.clicked.connect(self.onButton2Click)

    gridLayout = QGridLayout()
    gridLayout.addWidget(self.lineEdit)
    gridLayout.addWidget(self.button1)
    gridLayout.addWidget(self.button2)
    self.setLayout(gridLayout)

def onButton1Click(self):
    dialog = DateDialog(self)
    result = dialog.exec_()
    date = dialog.dateTime()
    self.lineEdit.setText(date.date().toString())
    print('\n日期对话框的返回值')
    print('date=%s' % str(date.date()))
    print('time=%s' % str(date.time()))
    print('result=%s' % result)
    dialog.destroy()

def onButton2Click(self):
    date, time, result = DateDialog.getDateTime()
    self.lineEdit.setText(date.toString())
    print('\n日期对话框的返回值')
    print('date=%s' % str(date))
    print('time=%s' % str(time))
    print('result=%s' % result)
    if result == QDialog.Accepted:
        print('点击确认按钮')
    else:
        print('点击取消按钮')