PyQt5--EventSender 

 1 # -*- coding:utf-8 -*-
 2 '''
 3 Created on Sep 14, 2018
 4 
 5 @author: SaShuangYiBing
 6 
 7 Comment: This example is show which sender was triggered.
 8 创建了两个按钮。在buttonClicked()方法中通过调用sender()方法来判断当前按下的是哪个按钮
 9 '''
10 import sys
11 from PyQt5.QtWidgets import QApplication,QMainWindow,QPushButton
12 
13 class New_test(QMainWindow):
14     def __init__(self):
15         super().__init__()
16         self.initUI()
17         
18     def initUI(self):
19         btn1 = QPushButton('Button1',self)
20         btn1.move(30,50)
21         btn2 = QPushButton('Button2',self)
22         btn2.move(150,50)
23         
24         btn1.clicked.connect(self.buttonClicked)
25         btn2.clicked.connect(self.buttonClicked)
26         
27         self.statusBar()
28         
29         self.setGeometry(300,300,290,150)
30         self.setWindowTitle('Event Sender')
31         self.show()
32         
33     def buttonClicked(self):
34         sender = self.sender()
35         self.statusBar().showMessage(sender.text() + ' was pressed')  # 通过调用sender()方法来判断信号源， 并将其名称显示在窗体的状态栏中
36         
37 if __name__ == '__main__':
38     app = QApplication(sys.argv)
39     ex = New_test()
40     sys.exit(app.exec_())

 

按下 button1时在status bar的提示语：

 

按下 button2时在 status bar的提示语：

 

 

posted @ 2018-09-14 16:15  iSZ  阅读(921)  评论(0)  编辑  收藏  举报