这篇文章将为大家详细讲解有关python+PyQT怎么实现系统桌面时钟？，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。

创新互联始终坚持【策划先行，效果至上】的经营理念，通过多达10年累计超上千家客户的网站建设总结了一套系统有效的网络营销推广解决方案，现已广泛运用于各行各业的客户，其中包括：成都茶楼设计等企业，备受客户称赞。

用Python + PyQT写的一个系统桌面时钟，刚学习Python，写的比较简陋，但是基本的功能还可以。

功能：

①窗体在应用程序最上层，不用但是打开其他应用后看不到时间

②左键双击全屏，可以做小屏保使用，再次双击退出全屏。

③系统托盘图标，主要参考PyQt4源码目录中的PyQt4\examples\desktop\systray下的程序

④鼠标右键，将程序最小化

使用时需要heart.svg放在源代码同级目录下，[文件可在PyQt4示例代码目录下PyQt4\examples\desktop\systray\images找到

运行需要Python2.7 + PyQt4.

__metaclass__ = type 
#!coding= utf-8 
#http://blog.csdn.net/gatieme/article/details/17659259 
#gatieme 
 
 
import sys 
from PyQt4.QtCore import * 
from PyQt4.QtGui import * 
 
 
#-------------------------------------------------------------------------------- 
class SystemTrayIcon(QSystemTrayIcon): 
 """ 
 The systemTrayIcon which uesd to connect the clock 
 """ 
 #---------------------------------------------------------------------------- 
 def __init__(self, mainWindow, parent = None): 
  """ 
  mainWindow : the main window that the system tray icon serves to 
  """  
  super(SystemTrayIcon, self).__init__(parent) 
  self.window = mainWindow 
  self.setIcon(QIcon("heart.svg")) # set the icon of the systemTrayIcon 
   
  self.createActions( ) 
  self.createTrayMenu( ) 
   
  self.connect(self, SIGNAL("doubleClicked"), self.window, SLOT("showNormal")) 
  #self.connect(self, SIGNAL("activated( )"), self, SLOT("slot_iconActivated")) 
   
 
 def createActions(self): 
  """ 
  create some action to Max Min Normal show the window 
  """ 
  self.minimizeAction = QAction("Mi&nimize", self.window, triggered = self.window.hide) 
  self.maximizeAction = QAction("Ma&ximize", self.window, triggered = self.window.showMaximized) 
  self.restoreAction = QAction("&Restore", self.window, triggered = self.window.showNormal) 
  self.quitAction = QAction("&Quit", self.window, triggered = qApp.quit) 
     
 
 def createTrayMenu(self): 
   self.trayIconMenu = QMenu(self.window) 
   self.trayIconMenu.addAction(self.minimizeAction) 
   self.trayIconMenu.addAction(self.maximizeAction) 
   self.trayIconMenu.addAction(self.restoreAction) 
   self.trayIconMenu.addSeparator( ) 
   self.trayIconMenu.addAction(self.quitAction) 
 
   self.setContextMenu(self.trayIconMenu) 
  
 def setVisible(self, visible): 
  self.minimizeAction.setEnabled(not visible) 
  self.maximizeAction.setEnabled(not self.window.isMaximized()) 
  self.restoreAction.setEnabled(self.window.isMaximized() or not visible) 
  super(Window, self).setVisible(visible) 
 
 
 
 def closeEvent(self, event): 
  #if event.button( ) == Qt.RightButton: 
  self.showMessage("Message", 
    "The program will keep running in the system tray. To " 
    "terminate the program, choose Quit in the " 
    "context menu of the system tray entry.", 
    QSystemTrayIcon.Information, 5000) 
  self.window.hide( ) 
  event.ignore( ) 
 
 def slot_iconActivated(self, reason): 
  if reason == QSystemTrayIcon.DoubleClick: 
   self.wiondow.showNormal( ) 
 
 
 
#-------------------------------------------------------------------------------- 
class DigitClock(QLCDNumber): 
 """ 
 the DigitClock show a digit clock int the printer 
 """ 
  
 #---------------------------------------------------------------------------- 
 def __init__(self, parent = None): 
  """ 
  the constructor function of the DigitClock 
  """ 
  super(DigitClock, self).__init__(parent) 
  pale = self.palette( ) 
 
  pale.setColor(QPalette.Window, QColor(100, 180, 100)) 
  self.setPalette(pale) 
   
  self.setNumDigits(19) 
  self.systemTrayIcon = SystemTrayIcon(mainWindow = self) 
 
   
  self.dragPosition = None; 
  self.setWindowFlags(Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint | Qt.Popup | Qt.Tool) 
  self.setWindowOpacity(1) 
   
  self.showTime( )   # print the time when the clock show 
  self.systemTrayIcon.show( ) # show the SystemTaryIcon when the clock show 
 
  self.timer = QTimer( ) 
  self.connect(self.timer, SIGNAL("timeout( )"), self.showTime) 
  self.timer.start(1000) 
   
  self.resize(500, 60) 
   
  
 #---------------------------------------------------------------------------- 
 def showTime(self): 
  """ 
  show the current time 
  """ 
  self.date = QDate.currentDate( ) 
  self.time = QTime.currentTime( ) 
  text = self.date.toString("yyyy-MM-dd") + " " + self.time.toString("hh:mm:ss") 
  self.display(text) 
 
   
 
 #---------------------------------------------------------------------------- 
 def mousePressEvent(self, event): 
  """ 
  clicked the left mouse to move the clock 
  clicked the right mouse to hide the clock 
  """ 
  if event.button( ) == Qt.LeftButton: 
   self.dragPosition = event.globalPos( ) - self.frameGeometry( ).topLeft( ) 
   event.accept( ) 
  elif event.button( ) == Qt.RightButton: 
   self.systemTrayIcon.closeEvent(event) 
 
   #self.systemTrayIcon.hide( ) 
   #self.close( ) 
 
 def mouseMoveEvent(self, event): 
  """ 
  """ 
  if event.buttons( ) & Qt.LeftButton: 
   self.move(event.globalPos( ) - self.dragPosition) 
   event.accept( ) 
  
 def keyPressEvent(self, event): 
  """ 
  you can enter "ESC" to normal show the window, when the clock is Maxmize 
  """ 
  if event.key() == Qt.Key_Escape and self.isMaximized( ): 
   self.showNormal( ) 
 
 def mouseDoubleClickEvent(self, event): 
  """ 
  """ 
  if event.buttons() == Qt.LeftButton: 
   if self.isMaximized( ): 
    self.showNormal( ) 
   else: 
    self.showMaximized( ) 
  
if __name__ == "__main__": 
 app = QApplication(sys.argv) 
  
 digitClock = DigitClock( ) 
 digitClock.show( )  
  
 sys.exit(app.exec_( )) 

分享题目：python+PyQT怎么实现系统桌面时钟？-创新互联
标题来源：http://ybzwz.com/article/dgegos.html