编程环境：Fedora, QtCreator

见代码：

# This Python file uses the following encoding: utf-8
import sys
from PySide6.QtWidgets import QApplication, QMainWindow, QLabel, QVBoxLayout, QWidget
from PySide6.QtGui import QPalette     #, QColor
from PySide6.QtCore import Qt


class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)

        self.setWindowTitle("label控件")
        self.resize(800, 400)
        #self.status = self.statusBar()

        layout = QVBoxLayout()
        widget = QWidget(self)
        widget.setLayout(layout)
        widget.setGeometry(50, 50, 700, 300)
        #self.setCentralWidget(widget)
        self.widget = widget


        label_normal = QLabel(self)
        label_normal.setText("这是一个普通标签，居中。")
        label_normal.setAlignment(Qt.AlignCenter)
        label_normal.setFixedHeight(30)
        layout.addWidget(label_normal)

        label_color = QLabel(self)
        label_color.setText("这是一个有红色背景白色字体的标签，左对齐。")
        label_color.setAutoFillBackground(True)
        palette = QPalette()
        palette.setColor(QPalette.Window, Qt.red)
        palette.setColor(QPalette.WindowText, Qt.white)
        label_color.setPalette(palette)
        label_color.setAlignment(Qt.AlignLeft)
        label_color.setFixedHeight(30)
        layout.addWidget(label_color)

        label_html = QLabel(self)
        label_html.setText("<a href='#'>这是一个HTML标签</a><font color='red'><i>Hello</i> <b>World</b> </font>")
        label_html.setAlignment(Qt.AlignRight)
        label_html.setFixedHeight(30)
        layout.addWidget(label_html)

        label_hover = QLabel(self)
        label_hover.setText("<a href='#'>指针滑过该标签时触发事件</a>")
        label_hover.linkHovered.connect(self.link_hovered)
        label_hover.setFixedHeight(30)
        label_hover.setAlignment(Qt.AlignLeft)
        layout.addWidget(label_hover)

        label_click = QLabel(self)
        label_click.setText("<a href='http://www.baidu.com'>单击可以打开百度</a>")
        label_click.setOpenExternalLinks(True)
        label_click.setFixedHeight(30)
        label_click.setAlignment(Qt.AlignLeft)
        layout.addWidget(label_click)

    def link_hovered(self):
        print("指针滑过时触发事件")






if __name__ == "__main__":
    app = QApplication([])
    window = MainWindow()
    window.show()
    sys.exit(app.exec())

执行效果：