PyQt5 标签 - 添加阴影

在本文中，我们将看到如何在默认情况下为标签添加阴影虽然我们可以为标签创建阴影，但标签没有阴影，下面是带有阴影框的标签的表示形式

In order to do this we have to do the following –

1. Create a label
2. Set geometry to the label
3. Create a QGraphicsDropShadowEffect object
4. Set blur radius to the object(optional)
5. Add this object to the label with the help of setGraphicsEffect method

句法 ：

# creating a QGraphicsDropShadowEffect object
shadow = QGraphicsDropShadowEffect()

# setting blur radius (optional step)
shadow.setBlurRadius(15)

# adding shadow to the label
label.setGraphicsEffect(shadow)

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 background color of window
        # self.setStyleSheet("background-color : black;")
  
        # 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 widgets
    def UiComponents(self):
  
        # creating label
        label = QLabel("Label", self)
  
        # setting alignment
        label.setAlignment(Qt.AlignCenter)
  
        # setting geometry to the label
        label.setGeometry(200, 150, 200, 80)
  
        # setting border
        label.setStyleSheet("border : 10px solid black")
  
        # creating a QGraphicsDropShadowEffect object
        shadow = QGraphicsDropShadowEffect()
  
        # setting blur radius
        shadow.setBlurRadius(15)
  
        # adding shadow to the label
        label.setGraphicsEffect(shadow)
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：