PyQt5 QDateTimeEdit – 设置特殊日期时间文本

在本文中，我们将了解如何为 QDateTimeEdit 小部件设置特殊的日期时间文本。通过设置特殊文本，只要当前值等于最小日期时间，QDateTimeEdit 就会显示此特殊文本而不是日期时间值。

为此，我们将使用带有 QDateTimeEdit 对象的setSpecialValueText方法。

Syntax : datetimeedit.setSpecialValueText(text)

Argument : It takes string as argument

Return : It returns None

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, 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)
  
        
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：