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Ejemplo de PyQt

/ Published in: Python
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  1. # -*- coding: utf-8 -*-
  2.  
  3. import sys
  4. from PyQt4.QtCore import SIGNAL
  5. from PyQt4.QtGui import *
  6. from calc_ui import Ui_calc
  7.  
  8. class Calc(QWidget, Ui_calc):
  9.  
  10. 	def __init__(self, parent = None):
  11. 		QWidget.__init__(self, parent)
  12. 		self.setupUi(self)
  13. 		self.connect(self.sum, SIGNAL("clicked()"),self.sumar)
  14. 		self.connect(self.res, SIGNAL("clicked()"),self.restar)
  15. 		self.connect(self.mul, SIGNAL("clicked()"),self.multiplicar)
  16. 		self.connect(self.div, SIGNAL("clicked()"),self.dividir)
  17.  
  18. 	def sumar(self):
  19. 		self.result.setText( str( float(self.num1.text()) + float(self.num2.text()) ) )
  20.  
  21. 	def restar(self):
  22. 		self.result.setText( str( float(self.num1.text()) - float(self.num2.text()) ) )
  23.  
  24. 	def multiplicar(self):
  25. 		self.result.setText( str( float(self.num1.text()) * float(self.num2.text()) ) )
  26.  
  27. 	def dividir(self):
  28. 		self.result.setText( str( float(self.num1.text()) / float(self.num2.text()) ) )
  29.  
  30. if __name__ == "__main__":
  31. 	app = QApplication(sys.argv)
  32. 	window = Calc()
  33. 	window.show()
  34. 	sys.exit(app.exec_())

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