PyQt5 QCalendarWidget – 显示上个月

在本文中，我们将看到如何在屏幕上显示上个月的 QCalendarWidget。显示上个月表示相对于当前显示月份的上一年。
注意：所选日期不会更改。

In order to do this we will use showPreviousMonth method with the QCalendarWidget object.
Syntax : calendar.showPreviousMonth()
Argument : It takes no argument
Return : It returns None 

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, 600, 400)
 
        # calling method
        self.UiComponents()
 
        # showing all the widgets
        self.show()
 
    # method for components
    def UiComponents(self):
 
        # creating a QCalendarWidget object
        calender = QCalendarWidget(self)
 
        # setting geometry to the calendar
        calender.setGeometry(10, 10, 400, 250)
 
        # creating push button
        push = QPushButton("Previous Month", self)
 
        # setting geometry to the push
        push.setGeometry(120, 280, 100, 40)
 
        # adding action to the push
        push.clicked.connect(lambda: do_action())
 
        def do_action():
            # showing previous month
            calender.showPreviousMonth()
 
 
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())

输出 ：