31 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')

        nameLabel = QLabel('&Name', self)
        nameLineEdit = QLineEdit(self)
        passwordLabel = QLabel('&Password', self)
        passwordLineEdit = QLineEdit(self)
        # 设置伙伴控件
        nameLabel.setBuddy(nameLineEdit)
        passwordLabel.setBuddy(passwordLineEdit)

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

        # 栅格布局
        # mainLayout.addWidget(控件对象, rowIndex, columnIndex, row, column)
        mainLayout = QGridLayout(self)
        mainLayout.addWidget(nameLabel, 0, 0)
        mainLayout.addWidget(nameLineEdit, 0, 1, 1, 2)
        mainLayout.addWidget(passwordLabel, 1, 0)
        mainLayout.addWidget(passwordLineEdit, 1, 1, 1, 2)
        mainLayout.addWidget(btnOK, 2, 1)
        mainLayout.addWidget(btnCancel, 2, 2)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    main = QLabelBuddy()
    main.show()
    sys.exit(app.exec_())