PyQt4 Programming Method for Status Bar Display Information

Record 1 now, just understand the fur, maybe accumulate a lot

import sys
from PyQt4 import QtGui

class MainWindow(QtGui.QMainWindow):
 def __init__(self):
  QtGui.QMainWindow.__init__(self)

  self.resize(250,150)
  self.setWindowTitle('statusbar')
  self.statusBar().showMessage('Ready',) # call statusBar Method to get the status bar, using showMessage Let the status bar display information 

app = QtGui.QApplication(sys.argv)
main = MainWindow()
main.show()
sys.exit(app.exec_())