PyQt5 QLabel 与伙伴控件

from PyQt5.QtWidgets import *
import sys


class Qlabelbuddy(QDialog):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        self.setWindowTitle('Qlabel与伙伴控件')
        #创建热键
        namelabel = QLabel('&Name:',self)
        nameEdit = QLineEdit(self)
        #设置伙伴控件
        namelabel.setBuddy(nameEdit)

        passlabel= QLabel('&Password:',self)
        passLineEdit = QLineEdit(self)
        passlabel.setBuddy(passLineEdit)

        btn = QPushButton('&OK')
        btnCancel = QPushButton('&Cancel')

        #设置栅格布局
        mainlayout = QGridLayout(self)
        mainlayout.addWidget(namelabel,0,0)
        mainlayout.addWidget(nameEdit,0,1,1,2)

        mainlayout.addWidget(passlabel,1,0)
        mainlayout.addWidget(passLineEdit,1,1,1,2)

        mainlayout.addWidget(btn,2,1)
        mainlayout.addWidget(btnCancel,2,2)

if __name__ == '__main__':
    app= QApplication(sys.argv)

    main= Qlabelbuddy()
    main.show()
    app.exit(app.exec_())