PyQt5：QFontDialog字体对话框(21)

学习《PyQt4入门指南 PDF中文版.pdf 》笔记

字体对话框一个用来设置字体的对话框部件

<span style="font-size:12px;">#!/usr/bin/python
# fontdialog.py

from PyQt5.QtWidgets import QApplication, QPushButton, QFontDialog,  QHBoxLayout, QLabel
from PyQt5 import QtWidgets
from PyQt5.QtCore import Qt

class FontDialog(QtWidgets.QWidget):
    def __init__(self, parent= None):
        QtWidgets.QWidget.__init__(self)
  
        hbox = QHBoxLayout()
        
        self.setGeometry(300, 300, 150, 110)
        self.setWindowTitle('FontDialog')
        
        button = QPushButton('Dialog', self)
        button.setFocusPolicy(Qt.NoFocus)
        button.move(20, 20)
        
        hbox.addWidget(button)
        button.clicked.connect(self.showDialog)
        self.label = QLabel('knowledge only matters', self)
        self.