标签：__ font win label PyQT5 QtWidgets main
from PyQt5 import QtWidgets
from PyQt5 import QtCore, QtGui
import sys
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
main_win = QtWidgets.QMainWindow()
main_win.setWindowTitle("我的第一个PyQT5应用")
label = QtWidgets.QLabel()
label.setText("Hello, PyQT5")
# label.setBaseSize(100, 150)
# label.setScaledContents()
# pix = pixmap.scaled(QtCore.QSize(620, 500), QtCore.Qt.KeepAspectRatio) # 自动保持比例放缩方式
# label.setPixmap(pix) # 设置图像显示
label.setAlignment(QtCore.Qt.AlignCenter) # label上居中显示
label.setStyleSheet("background-color:blue;color:green") # 背景颜色设置
font = QtGui.QFont()
font.setBold(True)
font.setPointSizeF(32)
label.setFont(font)
main_win.setCentralWidget(label)
main_win.setMinimumSize(1080, 720)
main_win.show()
app.exec_()
标签：__,
font,
win,
label,
PyQT5,
QtWidgets,
main
From： https://www.cnblogs.com/jackchen28/p/18230959