PyQt5--EventHandler

 1 # -*- coding:utf-8 -*-
 2 ‘‘‘
 3 Created on Sep 14, 2018
 4 
 5 @author: SaShuangYiBing
 6 ‘‘‘
 7 import sys
 8 from PyQt5.QtCore import Qt
 9 from PyQt5.QtWidgets import QApplication,QWidget
10 
11 class New_test(QWidget):
12     def __init__(self):
13         super().__init__()
14         self.initUI()
15         
16     def initUI(self):
17         self.setGeometry(300,300,250,150)
18         self.setWindowTitle(‘Event Handler‘)
19         self.show()
20     
21     def keyPressEvent(self, e):
22         if e.key() == Qt.Key_Escape:
23             self.close()
24         
25 if __name__ == ‘__main__‘:
26     app = QApplication(sys.argv)
27     ex = New_test()
28     sys.exit(app.exec_())