PyQt5 QCalendarWidget – 使用ID获取子程序
在这篇文章中,我们将看到如何使用子程序的ID来找到QCalendarWidget的子程序。日历不是一个独立的小部件,它是由一些小部件组成的,这些小部件被称为子部件,例如,日期和年份的旋转框以及月份的下拉菜单共同组成了日历。我们可以使用children方法来获得这些子部件。
为了做到这一点,我们将使用QCalendarWidget对象的find方法。
语法: calendar.find(id)
参数: 它需要有效的id对象作为参数
返回: 它返回子对象
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)
# 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: