from PyQt4 import QtGui,uicimport sys,srcXS.imgfrom random import randintdef show_only(windows, n):for i, window in enumerate(windows):if i != int(n):window.hide()else:window.show()class Choice(QtGui.QFrame):def __init__(self):super(QtGui.QFrame, self).__init__()self.windows=[uic.loadUi('main.ui'),uic.loadUi('wait.ui'),uic.loadUi('do.ui')]show_only(self.windows,0)self.windows[0].chooseButton.clicked.connect(lambda: self.btn_tapped())def btn_tapped(self):show_only(self.windows,randint(1,2))if __name__ == '__main__':app = QtGui.QApplication(sys.argv)a=Choice()sys.exit(app.exec_())文件夹组织为：
，这一次是一个告别，或者一个永远的告别，
