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====== Pyqt ======
===== 基本程序模板 =====
<code python>
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Thu Jun  3 08:55:49 2021

@author: hug
"""
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
import threading
class MainWindow(QMainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()
        self.setWindowTitle('应用程序标题')
        widget = QWidget(self)
        self.layout = QHBoxLayout(self)
        widget.setLayout(self.layout)
        toolbar = QToolBar("My main toolbar")
        self.addToolBar(toolbar)
        self.setStatusBar(QStatusBar(self))
        button_action = QAction("动作1", self)
        toolbar.addAction(button_action)
        button_action.setStatusTip("动作1提示信息")
        button_action.triggered.connect(self.something)
        self.col = QColorDialog.getColor()
        print(f'你选择了{self.col.name()}颜色')
        widgets = [QCheckBox,
            QComboBox,
            QDateEdit,
            QDateTimeEdit,
            QDial,
            QDoubleSpinBox,
            QFontComboBox,
            QLCDNumber,
            QLabel,
            QLineEdit,
            QTextEdit,
            QProgressBar,
            QPushButton,
            QRadioButton,
            QSlider,
            QSpinBox,
            QTimeEdit]
        for w in widgets:
            self.layout.addWidget(w())
        self.setCentralWidget(widget)
    def something(self):
        print('你按下了动作1')
    def closeEvent(self, event):
            reply = QMessageBox.question(self, '警告', '确认关闭？',
                                               QMessageBox.Yes, QMessageBox.No)
            if reply == QMessageBox.Yes:
                self.exit_flag = True
                event.accept()
                # 清理释放工作
            else:
                event.ignore()

app = QApplication(sys.argv)
win = MainWindow()
win.showMaximized()
win.show()
sys.exit(app.exec_())
        
</code>

===== 各组件及其功能 =====
  - [[QTextEdit]]
  - [[QTree]]
  - [[QTable]]
  - [[文件选择对话框]]
  - [[https://doc.qt.io/qt-5/qtwidgets-module.html|在线手册]]
  - [[https://www.learnpyqt.com/tutorials/|学习教程]]
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