PyQt5-网格布局（QGridLayout）-10

#demo_11:网格布局
import sys
from PyQt5.QtWidgets import  QApplication,QWidget,QGridLayout,QPushButton

class Example(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()
    def initUI(self):
        self.names = ['Cls', 'Bck', '', 'Close',
                     '7', '8', '9', '/',
                     '4', '5', '6', '*',
                     '1', '2', '3', '-',
                     '0', '.', '=', '+']
        self.options=[(j,i) for j in range(5) for i in range(4)]
        self.layout=QGridLayout()
        self.setLayout(self.layout)

        for (name,option) in zip(self.names,self.options):
            if name=='':continue
            btn=QPushButton(name)
            self.layout.addWidget(btn,*option)
        self.setWindowTitle('Calculator')
        self.show()
if __name__=='__main__':
    app=QApplication(sys.argv)
    e=Example()
    sys.exit(app.exec())

# names = ['Cls', 'Bck', '', 'Close',
#              '7', '8', '9', '/',
#              '4', '5', '6', '*',
#              '1', '2', '3', '-',
#              '0', '.', '=', '+']
# options = [(i, j) for j in range(5) for i in range(4)]
# for position, name in zip(options, names):
#     print(str(position)+"》》"+str(name))