PyQt5 – 标签的 lower() 方法
在 PyQt5 中,当我们在同一位置创建多个标签时,它们会相互重叠,以便最后制作的标签应显示在顶部。虽然,我们可以设置不透明级别,但有时某些标签的优先级较低,这就是为什么它们应该低于级别,因此使用lower()
方法。
Syntax : label.lower()
Argument : It takes no argument.
Action performed : It sets lower priority to the label.
代码 :
# importing the required libraries
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
import sys
class Window(QMainWindow):
def __init__(self):
super().__init__()
# set the title
self.setWindowTitle("Python")
# setting geometry
self.setGeometry(100, 100, 600, 400)
# creating a label widget
self.label_1 = QLabel("old label ", self)
# setting up the border and background color
self.label_1.setStyleSheet("border :3px solid black;
background : pink")
# moving the label
self.label_1.move(100, 100)
# creating a new label widget
self.label_2 = QLabel("new Label ", self)
# setting up the border and background color
self.label_2.setStyleSheet("border :3px solid black;
background : green")
# setting lower priority to this label
self.label_2.lower()
# moving the label
self.label_2.move(110, 110)
# show all the widgets
self.update()
self.show()
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())
输出 :
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