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  • PyQt5--CustomizeSignal

     1 # -*- coding:utf-8 -*-
     2 '''
     3 Created on Sep 14, 2018
     4 
     5 @author: SaShuangYiBing
     6 
     7 Comment: This example is show how to triggered the customize signal.
     8 创建了一个名为closeApp的信号。这个信号会在按下鼠标时触发,它连接着QMainWindow的close()插槽
     9 '''
    10 import sys
    11 from PyQt5.QtCore import pyqtSignal,QObject
    12 from PyQt5.QtWidgets import QApplication,QMainWindow
    13 
    14 class Communicate(QObject):
    15     closeApp = pyqtSignal() # 信号closeApp是Communicate的类属性,它由pyqtSignal()创建。
    16 
    17 class New_test(QMainWindow):
    18     def __init__(self):
    19         super().__init__()
    20         self.initUI()
    21         
    22     def initUI(self):
    23         self.c = Communicate()
    24         self.c.closeApp.connect(self.close) # 自定义closeApp信号连接到QMainWindow的close槽
    25         
    26         self.setGeometry(300,300,250,150)
    27         self.setWindowTitle('Emit Signal')
    28         self.show()
    29         
    30     def mousePressEvent(self,event):
    31         self.c.closeApp.emit() # 当在窗体上点击鼠标时会触发closeApp信号,使程序退出
    32         
    33 if __name__ == '__main__':
    34     app = QApplication(sys.argv)
    35     ex = New_test()
    36     sys.exit(app.exec_())

    当程序运行后,在窗口中点击鼠标键时该窗口就会自动退出

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  • 原文地址:https://www.cnblogs.com/aziji/p/9647310.html
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