PyQt5 QSpinBox – 获取属性值

在本文中，我们将了解如何获取旋转框的属性值，属性是开发人员添加的用于告知旋转框属性的信息，例如，如果旋转框具有循环值的能力，则开发人员将添加此属性，以便其他开发人员可以看到并了解该属性。使用setProperty方法添加属性。

In order to do this we use property method

Syntax : spin_box.property(property)

Argument : It takes string as argument

Return : It returns integer

下面是实现

# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys
  
  
class Window(QMainWindow):
  
    def __init__(self):
        super().__init__()
  
        # setting title
        self.setWindowTitle("Python ")
  
        # setting geometry
        self.setGeometry(100, 100, 600, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
        # method for widgets
    def UiComponents(self):
        # creating spin box
        self.spin = QSpinBox(self)
  
        # setting geometry to spin box
        self.spin.setGeometry(100, 100, 250, 40)
  
        # setting range to the spin box
        self.spin.setRange(0, 999999)
  
        # setting prefix to spin
        self.spin.setPrefix("Prefix ")
  
        # setting suffix to spin
        self.spin.setSuffix(" Suffix")
  
        # adding property to the spin box
        self.spin.setProperty("Dynamic", 1)
  
        # adding property to the spin box
        self.spin.setProperty("Has suffix", 1)
  
        # creating label
        self.label = QLabel(self)
  
        # setting geometry to the label
        self.label.setGeometry(100, 200, 200, 70)
  
        # making it multi line label
        self.label.setWordWrap(True)
  
        # property
        property_name = "Dynamic"
  
        # getting property value
        value = self.spin.property(property_name)
  
        # setting text to the label
        self.label.setText("Property Name :  " + property_name +
                           "  Property Value : " + str(value))
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
window.spin.setFocus()
# start the app
sys.exit(App.exec())

输出 ：