PyQt: 练习 QCalendarWidget

import sys
from PyQt5.Qt import *


class Window(QWidget):
    def __init__(self):
        super().__init__()
        self.setup_ui()

    def setup_ui(self):
        self.setWindowTitle("Qt桌面应用程序")
        self.resize(300, 300)
        self.label = QLabel(self)
        self.label.resize(self.width(), 30)
        self.label.setStyleSheet("background-color:cyan")

        self.push_button = QPushButton(self)
        self.push_button.setText("按钮")
        self.push_button.move(20, 40)

        self.calendar = QCalendarWidget(self)
        self.calendar.move(20, 80)
        self.calendar.setDateRange(QDate(2000, 1, 1), QDate(2050, 12, 31))
        self.calendar.setDateEditEnabled(True)
        self.calendar.setNavigationBarVisible(False)
        # self.calendar.setSelectionMode(QCalendarWidget.NoSelection)
        self.calendar.setFirstDayOfWeek(Qt.Sunday)
        text_char_format = QTextCharFormat()
        text_char_format.setFontWeight(1000)
        self.calendar.setHeaderTextFormat(text_char_format)

        def push_button_clicked():
            self.label.setText(
                f"展现年月：{self.calendar.yearShown()}/{self.calendar.monthShown()} 选择的日期：{self.calendar.selectedDate().toPyDate()}")

        self.push_button.clicked.connect(push_button_clicked)

        # self.calendar.activated.connect(lambda x:self.label.setText(f"{x.toPyDate()}"))
        # self.calendar.selectionChanged.connect(lambda :self.label.setText(f"{self.calendar.selectedDate().toPyDate()}"))
        self.calendar.clicked.connect(lambda x: self.label.setText(f"{x.toPyDate()}"))


if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec_())