Guide to using QLabel Tag Components in PyQt

In PyQt,QLabelis a basic component for displaying text or images. It is usually used to display static information or as a tag for other components. This article will introduce in detailQLabelBasic usage and some advanced features.

Basic usage

First, we need to import the necessary modules and create a simpleQLabel。

import sys
from  import QApplication, QWidget, QLabel
class MyWindow(QWidget):
    def __init__(self):
        super().__init__()
        ()
    def initUI(self):
        (300, 300, 300, 200)
        ('QLabel Example')
        # Create a tag        label = QLabel('This is a tag', self)
        (100, 80)
        ()
if __name__ == '__main__':
    app = QApplication()
    window = MyWindow()
    (app.exec_())

Show image

QLabelNot only can you display text, but you can also display images.

from  import QPixmap
class MyWindow(QWidget):
    def __init__(self):
        super().__init__()
        ()
    def initUI(self):
        (300, 300, 300, 200)
        ('QLabel display image example')
        # Create a tag and display an image        label = QLabel(self)
        pixmap = QPixmap('path/to/')
        (pixmap)
        ((), ())
        ()
if __name__ == '__main__':
    app = QApplication()
    window = MyWindow()
    (app.exec_())

Text formatting

You can use HTML tags to formatQLabeltext in  .

('<h1>This is a title</h1><p>This is a paragraph text.  </p>')

Alignment

You can setQLabelThe alignment of Chinese text.

()  # Center Align()   # Left Alignment()  # Right aligned

Automatic line wrap

You can setQLabelWhether to wrap the line automatically.

(True)  # Turn on automatic line wrap

Stylesheet

You can customize by setting style sheetsQLabelAppearance.

("""
    QLabel {
        color: #333;
        font-size: 16px;
    }
""")

Summarize

QLabelis a very practical component in PyQt, suitable for displaying various static information. By using HTML tags, you can easily format text. Custom stylesheets can make your application more beautiful and professional. I hope this article can help you better understand and use itQLabel。

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