PyQT5之QTimer
1.PyQT5图像2.PyQT5水平垂直布局3.PyQT5之图片左右翻页4.PyQT5之QPushButton和布局5.PyQT5之label6.PyQT5之选择图片7.PyQT5之自定义信号8.PyQT5之窗口9.PyQT5之菜单栏和工具栏10.PyQT5之QComboBox11.PyQT5之Checkbox12.PyQT5之QRadioButton13.PyQT5之单行文本输入到多行显示窗14.PyQT5之网格布局多图片显示15.PyQtGraph绘制折线图16.PyQT5之PyQtGraph实时数据显示17.PyQT5之窗口最大化最小化18.PyQT5之QSS基础/子控件选择器19.PyQT5样式设置20.PyQT5绘图21.PyQT5窗口样式设置22.PyQT5之设置窗口控件风格23.PyQT5之多窗口交互24.PyQT5之override覆盖槽函数25.PyQT5之为槽函数传递参数26.PyQT5信号与槽的连接27.PyQT5信号刷新时间28.PyQT5之信号关闭窗口29.信号与槽N对N30.PyQT5之多个信号31.PyQT5之QTreeView32.PyQT5内嵌html33.PyQT5加载本地web页面34.PyQT5之QWebEngineView35.PyQT5之QThread
36.PyQT5之QTimer
37.PyQT5之QStackedWidget38.PyQT5之QTreeWidget-QTabWidget39.PyQT5之QTableWidget40.PyQT5之QListWidget41.PyQT5之QListView42.PyQT5之二维表QTableView43.PyQT5打印机44.PyQT5之QPainter45.PyQT5之QFontDialog46.PyQT5之QInputDialog47.PyQT5之QMessageBox48.PyQT5之QDialog49.PyQT5之多页面切换50.PyQT5之计数器控件QSpinBox51.PyQT5之滑块控件QSlider52.PyQtGraph绘图参考53.PyQtGraph之多图绘制54.PyQtGraph之柱状图55.PyQt5选择文件控件QFileDialog"""
动态显示当前时间
QTimer
QThread
"""
from PyQt5.QtWidgets import QWidget, QPushButton, QApplication, QListWidget, QGridLayout, QLabel
from PyQt5.QtCore import QTimer, QDateTime
import sys
class ShowTime(QWidget):
def __init__(self, parent=None):
super().__init__(parent)
self.setWindowTitle("动态显示当前时间")
self.label = QLabel()
self.startBtn = QPushButton("开始")
self.endBtn = QPushButton("结束")
layout = QGridLayout()
self.timer = QTimer()
self.timer.timeout.connect(self.showTime)
layout.addWidget(self.label, 0, 0, 1, 2)
layout.addWidget(self.startBtn, 1, 0)
layout.addWidget(self.endBtn, 1, 1)
self.setLayout(layout)
self.startBtn.clicked.connect(self.startTimer)
self.endBtn.clicked.connect(self.endTimer)
def showTime(self):
time = QDateTime.currentDateTime()
timeDisplay = time.toString('yyyy-MM-dd hh:mm:ss dddd')
self.label.setText(timeDisplay)
def startTimer(self):
self.timer.start(1000)
self.startBtn.setEnabled(False)
self.endBtn.setEnabled(True)
def endTimer(self):
self.timer.stop()
self.startBtn.setEnabled(True)
self.endBtn.setEnabled(False)
if __name__ == "__main__":
app = QApplication(sys.argv)
p = ShowTime()
p.show()
sys.exit(app.exec_())
实例2
"""
让程序定时关闭
QTimer.singleShot
"""
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
import sys
if __name__ == "__main__":
app = QApplication(sys.argv)
label = QLabel('<font color=red size=140><b>hello world, 窗口在5庙后自动关闭!</b></font>')
label.setWindowFlags(Qt.SplashScreen | Qt.FramelessWindowHint)
label.show()
QTimer.singleShot(5000, app.quit)
sys.exit(app.exec_())
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