重置或重新初始化PyQt singleShot计时器以防止函数调用开发者社区

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from PyQt5 import QtCore 
from PyQt5.QtCore import QTimer 
from PyQt5.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QHBoxLayout, QPushButton, QFrame, QLabel, QWidget 
import sys
class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.centralWidget = QWidget()
        self.mainLayout = QHBoxLayout()
        self.centralWidget.setLayout(self.mainLayout)
        self.setCentralWidget(self.centralWidget)
        self.mainFrame = QFrame(self.centralWidget)
        self.mainFrame.setContentsMargins(0,0,0,0)
        self.mainLayout.addWidget(self.mainFrame)
        self.vLay = QVBoxLayout(self.mainFrame)
        self.button = QPushButton()
        self.button.setText('press me')
        self.button2 = QPushButton()
        self.button2.setText('Stop')
        self.label = QLabel(self.mainFrame)
        self.label.setText('testLabel')
        self.vLay.addWidget(self.button)
        self.vLay.addWidget(self.button2)
        self.vLay.addWidget(self.label)
        self.timer = QTimer()
        self.timer.singleShot(5000, self.shot)
        self.label.setText('running')
        self.button.clicked.connect(self.resetTimer)
        self.button2.clicked.connect(self.stopTimer)
    def resetTimer(self):
        self.label.setText('reseted')
        self.timer = QTimer()
        self.timer.singleShot(5000, self.shot) 
    def stopTimer(self):
        self.timer.stop()
        self.label.setText('stopped')
    def shot(self):
        self.label.setText('shot')
if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec())

class MainWindow(QMainWindow):
    def __init__(self):
        # ...
        self.timer = QTimer()
        self.timer.setSingleShot(True)
        self.timer.setInterval(5000)
        self.timer.timeout.connect(self.shot)
        self.timer.start()
    def resetTimer(self):
        if self.timer.isActive():
            self.label.setText('reset')
        else:

问 重置或重新初始化PyQt singleShot计时器以防止函数调用 EN

回答 1

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