PyQt5 QCalendarWidget – 使用 ID 获取孩子

在本文中，我们将看到如何使用孩子的 ID 找到 QCalendarWidget 的孩子。日历不是一个独立的小部件，它由称为子小部件的小部件组成，例如年份的日期和旋转框以及月份的下拉菜单共同构成日历。我们可以使用 children 方法获取孩子。

In order to do this we will use find method with the QCalendarWidget object.
Syntax : calendar.find(id)
Argument : It takes effective id object as argument
Return : It return child object

编程需要懂一点英语

下面是实现

Python3

# 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)
 
        # children
        children = self.calendar.children()
 
        c_id = children[3].winId()
 
        # getting child through ID
        value = self.calendar.find(c_id)
 
        # setting text to the label
        self.label.setText("Child :" + 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：