PyQt5 QCalendarWidget – 点击信号

在本文中，我们将了解如何从 QCalendarWidget 获取点击信号。单击鼠标按钮时发出 Clicked 信号，即在指定日期单击鼠标时。该信号仅在单击有效日期时发出，例如，日期不在最小日期和最大日期之外。如果选择模式为 NoSelection，则不会发出此信号。

In order to do this we will use clicked method with the QCalendarWidget object.
Syntax : calendar.clicked.connect(lambda: print(“Clicked”))
Argument : It takes method as argument
Action Performed : It will print the message whenever activated signal get emitted 
 

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
        calendar = QCalendarWidget(self)
 
        # setting geometry to the calendar
        calendar.setGeometry(10, 10, 400, 250)
 
        # creating a label
        label = QLabel(self)
 
        # setting geometry to the label
        label.setGeometry(100, 280, 250, 60)
 
        # making label multi line
        label.setWordWrap(True)
 
        # text
        text = "Clicked Signals received (No.) : "
 
        # current count
        self.count = 0
 
        # getting the clicked signal and
        # when receives the signal printing the message
        calendar.clicked.connect(lambda: label.setText(text + str(get_count())))
 
        # method to increase the count value
        def get_count():
            self.count += 1
            return self.count
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())

输出 ：