QT setup icon

1, provided that there is a file icon in .ico

2, the following code to add an icon

import sys
from PyQt5.QtWidgets import QApplication,QMainWindow
from calendar import Ui_MainWindow
from PyQt5.QtGui import QIcon
class wuyue(QMainWindow,Ui_MainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        Ui_MainWindow.__init__(self)
        self.setupUi(self)


if __name__=='__main__':
    app=QApplication(sys.argv)
    asin =Wuyue () 
    asin.setWindowTitle ( ' real-time detection system ' ) 
    icon = QIcon ( ' ./resource/2.ico ' ) 
    asin.setWindowIcon (icon) 
    asin.show () 
    the sys.exit (app.exec_ ())

Demo: