PyQt4 精彩实例分析之电子钟，当然在写实例之前要先安装PyQt4模块。
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from PyQt4.QtGuiimport *
from PyQt4.QtCoreimport *
import sys
class DigiClock(QLCDNumber):
def __init__(self,parent=None):
super(DigiClock,self).__init__(parent)
p=self.palette()
p.setColor(QPalette.Window,Qt.red)
self.setPalette(p)
self.setNumDigits(19)
self.dragPosition=None
self.setWindowFlags(Qt.FramelessWindowHint)
self.setWindowOpacity(0.5)
timer=QTimer(self)
self.connect(timer,SIGNAL("timeout()"),self.showTime)
timer.start(1000)
self.showTime()
self.resize(500,60)
def mousePressEvent(self,event):
if event.button()==Qt.LeftButton:
self.dragPosition=event.globalPos()-self.frameGeometry().topLeft()
event.accept()
if event.button()==Qt.RightButton:
self.close()
def mouseMoveEvent(self,event):
if event.buttons() & Qt.LeftButton:
self.move(event.globalPos()-self.dragPosition)
event.accept()
def showTime(self):
time=QTime.currentTime()
date=QDate.currentDate()
text= date.toString("yyyy-MM-dd")+" "+time.toString("hh:mm:ss")
self.display(text)
app=QApplication(sys.argv)
form=DigiClock()
form.show()
app.exec_()