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窗口退出.py
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窗口退出.py
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import sys
from PyQt5.QtWidgets import QApplication,QMainWindow,QPushButton,QHBoxLayout,QWidget
class quitAPPlication(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowTitle('居中显示')
self.resize(400,500)
#添加button
self.button1= QPushButton('退出应用程序')
#将信号与槽连接起来
self.button1.clicked.connect(self.click_quit)
#创建一个水平布局
layOut =QHBoxLayout()
#将button1组件加入到平布局里
layOut.addWidget(self.button1)
#创建一个框架
mainFrame= QWidget()
#将布局放到框架里
mainFrame.setLayout(layOut)
#把框架放到主窗口里
self.setCentralWidget(mainFrame)
# 按钮时间的方法(自定义槽)
def click_quit(self):
sender=self.sender()
app=QApplication.instance()
app.quit()
if __name__ == '__main__':
app = QApplication(sys.argv)
main =quitAPPlication ()
main.show()
sys.exit(app.exec_())