pyqt4 测试

时间：2006-08-13 来源：kai0200

PyQt4 学习 >>> import sys
>>> from PyQt4 import QtCore, QtGui
>>> app=QtGui.QApplication(sys.argv)
>>> button = QtGui.QPushButton("Hello Word",None)
>>> button.show() 上面几行就可以显示，研究了几天发现资料太少，而且qt3的非常多！这里借用一个limodou的学习记录的例子不过是pyqt3的弄了半天改成pyqt4的，不过好像single slot 的实现3 4 好像不一样 1       import sys
2       from qt import *
3
4       class HelloButton(QPushButton):
5
6           def __init__(self, *args):
7               QPushButton.__init__(self, *args)
8               self.setText("Hello World")
9
10      class HelloWindow(QMainWindow):
11
12          def __init__(self, *args):
13              QMainWindow.__init__(self, *args)
14              self.button=HelloButton(self)
15              self.setCentralWidget(self.button)
16
17      def main(args):
18          app=QApplication(args)
19          win=HelloWindow()
20          win.show()
21          app.connect(app, SIGNAL("lastWindowClosed()"),
22                      app, SLOT("quit()"))
23          app.exec_loop()
24
25      if __name__=="__main__":
26          main(sys.argv) pyqt4 代码

#!/usr/bin/env python
import sys
from PyQt4 import QtCore, QtGui

class HelloButton(QtGui.QPushButton):

      def __init__(self,parent=None):
            QtGui.QPushButton.__init__(self, parent)
            self.setText("Hello World")

class HelloWindow(QtGui.QMainWindow):

      def __init__(self,parent=None):
            QtGui.QMainWindow.__init__(self,parent)
            self.button=HelloButton(self)
            self.setCentralWidget(self.button)

def main(args):
      app=QtGui.QApplication(args)
      win=HelloWindow()
      win.connect(win.button,QtCore.SIGNAL("clicked()"),win,QtCore.SLOT("close()"))
      win.show()
      app.connect(app, QtCore.SIGNAL("lastWindowClosed()"),
                  app, QtCore.SLOT("quit()"))
      app.exec_()

if __name__=="__main__":
      main(sys.argv) 问了一下单位搞python的哥们帮我该了一下，不过还是不是很清楚！有点郁闷！

主要就是这句话
win.connect(win.button,QtCore.SIGNAL("clicked()"),win,QtCore.SLOT("close()"))

win本身就是一个button 为什么第一个对象还要写win.button 呢还有就是SIGNAL  和 SLOT 具体怎么用还是不理解！

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