pyQt5-label常用方法

# -*- coding:utf-8 -*-
"""
@Time:2022/3/22 20:01
@Author:小柠檬
@File:label.py
"""
from PyQt5 import uic, QtCore
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QApplication


class Label:
    def __init__(self):
        # 加载UI界面
        self.ui = uic.loadUi("label.ui")

        # 1.更改标签内容
        self.ui.label_text.setText('更改标签内容')

        # 2.获取标签上的文本
        label_text = self.ui.label_text.text()
        print(label_text)

        # 3.设置标签提示
        self.ui.label_image.setToolTip('这是标签提示')

        # 4.添加标签背景
        image_path = r'F:\pyDemo\other\07-gui_Qt5\02-控件\00-resource\image\cat.jpg'
        self.ui.label_image.setPixmap(QPixmap(image_path))

        # 5.点击标签访问超链接
        self.ui.label_url.setText("<A href='www.baidu.com'>欢迎百度</a>")
        self.ui.label_url.setOpenExternalLinks(True)  # 默认不允许访问超链接，需要使用setOpenExternalLinks(True)允许


def main():
    QtCore.QCoreApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling)  # 和designer设计的窗口比例一致
    app = QApplication([])
    label = Label()
    label.ui.show()
    app.exec_()


if __name__ == '__main__':
    main()