PyQt5 QCalendarWidget – 检查它是否继承了给定的类
在这篇文章中,我们将看到如何检查QCalendarWidget是否继承了其他类。为了做到这一点,我们使用inherits属性,如果日历对象是一个继承className的类或继承className的QObject子类的实例,这个属性返回true;否则返回false。
注意:一个 类被认为是继承自己的。
为了做到这一点,我们将使用QCalendarWidget对象的inherits方法。
语法: calendar.inherits("QObject")
参数: 它需要字符串作为参数,即类名
返回: 它返回bool
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, 650, 400)
# calling method
self.UiComponents()
# showing all the widgets
self.show()
# method for components
def UiComponents(self):
# creating a QCalendarWidget object
self.calendar = QCalendarWidget(self)
# setting geometry to the calendar
self.calendar.setGeometry(50, 10, 400, 250)
# setting cursor
self.calendar.setCursor(Qt.PointingHandCursor)
# creating label to show the properties
self.label = QLabel(self)
# setting geometry to the label
self.label.setGeometry(100, 280, 250, 60)
# making label multi line
self.label.setWordWrap(True)
# checking if calendar inherits QObject
value = self.calendar.inherits("QObject")
# setting text to the label
self.label.setText("Inherits QObject : " + str(value))
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())
输出: