创建主窗口

"""创建主窗口"""
import sys
from PyQt5.QtWidgets import QMainWindow, QApplication
from PyQt5.QtGui import QIcon

class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super().__init__()

        self.resize(400, 200)
        self.status = self.statusBar()
        # 状态栏提示信息为5秒
        self.status.showMessage("这是状态栏提示", 5000)
        self.setWindowTitle("PyQtMainWindow 例子")

if __name__ == '__main__':
    app = QApplication(sys.argv)
    # 设置图标
    app.setWindowIcon(QIcon('chinaz16.png'))
    form = MainWindow()
    form.show()
    sys.exit(app.exec_())