PyQt5 QDateTimeEdit – 获取特殊日期时间文本

在这篇文章中，我们将看到如何获得QDateTimeEdit小组件的特殊日期时间文本。在setSpecialValueText方法的帮助下，QDateTimeEdit会在当前值等于最小日期时间时显示这个特殊的文本而不是日期时间值。

为了做到这一点，我们将使用QDateTimeEdit对象的specialValueText方法。

语法： datetimeedit.specialValueText()

参数： 它不需要参数

返回： 它返回字符串

下面是实现方法

# 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, 500, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
    # method for components
    def UiComponents(self):
  
        # creating a QDateTimeEdit widget
        datetimeedit = QDateTimeEdit(self)
  
        # setting geometry
        datetimeedit.setGeometry(100, 100, 150, 35)
  
        # minimum date time
        min_dt = QDateTime(2020, 10, 10, 11, 30)
  
        # setting minimum date time
        datetimeedit.setMinimumDateTime(min_dt)
  
        # text
        text = "GfG Date Time"
  
        # setting special text to the date time edit
        datetimeedit.setSpecialValueText(text)
  
        # creating a label
        label = QLabel("GeeksforGeeks", self)
  
        # setting geometry to the label
        label.setGeometry(100, 160, 200, 60)
  
        # making label multi line
        label.setWordWrap(True)
  
        # getting special text
        value = datetimeedit.specialValueText()
  
        # setting text to the label
        label.setText("Special Text : " + str(value))
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())