pyqt5 python 定时器的实现_pyqt时间定时器

import sys
import time
from PyQt5.QtWidgets import QApplication, QPushButton, QWidget
from PyQt5.QtCore import QTimer
class Window(QWidget):
    def __init__(self, parent=None):
        super(Window, self).__init__(parent)
        self.resize(600, 300)
        self.setWindowTitle('创建按钮和按钮点击事件的例子')

        self.timer = QTimer()  # 初始化定时器
        self.timer.timeout.connect(self.time)
        #定义时间任务是一次性任务，当是一次性任务的时候self.timer.start()不需要指定时间
        #self.timer.setSingleShot(True)
        self.timer.start(1000)

        self.pushbutton_开 = QPushButton("开启线程",self)
        self.pushbutton_开.setGeometry(10,10,200,200)

        self.pushbutton_关 = QPushButton("关闭线程",self)
        self.pushbutton_关.setGeometry(210, 10, 200, 200)

        self.pushbutton_开.clicked.connect(self.startTimer)
        self.pushbutton_关.clicked.connect(self.stopTimer)
    def time(self):
        print(time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time())))
    def stopTimer(self):
        self.timer.stop()
    def startTimer(self):
        self.timer.start(1000)
if __name__ == "__main__":
    app = QApplication(sys.argv)
    win = Window()
    win.show()
    sys.exit(app.exec_())
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