PyQt QMainWindow的使用示例

|-- main.py
|-- res
| `-- sword.png
`-- ui
 `-- app_main_window.py

import sys

from PyQt5.QtWidgets import QApplication
from ui.app_main_window import AppMainWindow

if __name__ == '__main__':
 app = QApplication(sys.argv)
 window = AppMainWindow()
 window.show()
 sys.exit(app.exec_())

from PyQt5.QtCore import QCoreApplication
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import QAction
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtWidgets import QTextEdit


class AppMainWindow(QMainWindow):
 """
 菜单栏、文本编辑框、工具栏和状态栏
 """

 def __init__(self):
  super().__init__()
  self.init_ui()

 def init_ui(self):
  # 菜单栏
  self.statusBar().showMessage('Main window is ready')
  self.setGeometry(500, 500, 450, 220)
  self.setMinimumSize(150, 120)
  self.setWindowTitle('MainWindow')

  # 文本编辑框
  text_edit = QTextEdit()
  self.setCentralWidget(text_edit) # 填充剩下的位置

  # 定义退出动作
  exit_action = QAction(QIcon('res/sword.png'), 'Exit', self)
  exit_action.setShortcut('Ctrl+Q')
  exit_action.setStatusTip('Exit App') # 鼠标指向选项时在窗口状态栏出现的提示
  # exit_action.triggered.connect(QCoreApplication.instance().quit)
  exit_action.triggered.connect(self.close) # 关闭app

  # 定义菜单栏，添加一个选项
  menu_bar = self.menuBar()
  file_menu = menu_bar.addMenu('&File')
  file_menu.addAction(exit_action)

  # 定义工具栏，添加一个退出动作
  toolbar = self.addToolBar('&Exit')
  toolbar.addAction(exit_action)

import sys
from PyQt5.QtWidgets import QMainWindow, QApplication
from ui_main_window import Ui_UAppMainWindow


class RustMainWindow(QMainWindow):
 """主界面类"""

 def __init__(self):
  super(RustMainWindow, self).__init__()
  self.ma = Ui_UAppMainWindow() # designer画的界面
  self.ma.setupUi(self)


if __name__ == "__main__":
 app = QApplication(sys.argv)
 main_window = RustMainWindow()
 main_window.show()
 sys.exit(app.exec_())

import sys
from PyQt4.QtGui import QMainWindow, QTextEdit, QAction, QIcon, QApplication


class AppMainWindow(QMainWindow):
 def __init__(self):
  super(AppMainWindow, self).__init__()
  self.init_ui()

 def init_ui(self):
  self.statusBar().showMessage('Main window is ready')
  self.setGeometry(500, 500, 450, 220)
  self.setMinimumSize(150, 120)
  self.setWindowTitle('MainWindow')

  text_edit = QTextEdit()
  self.setCentralWidget(text_edit)

  exit_action = QAction(QIcon('res/ic_s1.png'), 'Exit', self)
  exit_action.setShortcut('Ctrl+Q')
  exit_action.setStatusTip('Exit App')
  exit_action.triggered.connect(self.close)

  menu_bar = self.menuBar()
  file_menu = menu_bar.addMenu('&File')
  file_menu.addAction(exit_action)

  toolbar = self.addToolBar('&Exit')
  toolbar.addAction(exit_action)


if __name__ == '__main__':
 app = QApplication(sys.argv)
 window = AppMainWindow()
 window.show()
 sys.exit(app.exec_())