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QuitApplication.py
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QuitApplication.py
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import sys
from PyQt5.QtWidgets import QHBoxLayout,QMainWindow,QApplication,QPushButton,QWidget
class QuitApplication(QMainWindow):
def __init__(self):
super(QuitApplication,self).__init__()
self.resize(300,120)
self.setWindowTitle('退出应用程序')
# 添加Button
self.button1 = QPushButton('退出应用程序')
# 将信号与槽关联
self.button1.clicked.connect(self.onClick_Button)
layout = QHBoxLayout()
layout.addWidget(self.button1)
mainFrame = QWidget()
mainFrame.setLayout(layout)
self.setCentralWidget(mainFrame)
# 按钮单击事件的方法(自定义的槽)
def onClick_Button(self):
sender = self.sender()
print(sender.text() + ' 按钮被按下')
app = QApplication.instance()
# 退出应用程序
app.quit()
if __name__ == '__main__':
app = QApplication(sys.argv)
main = QuitApplication()
main.show()
sys.exit(app.exec_())