使用循环设置多个QLineEdit的属性

from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QLineEdit
import sys

class MyWidget(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        layout = QVBoxLayout()
        self.setLayout(layout)

        lineEdits = []  # 创建QLineEdit列表

        # 使用循环创建和添加多个QLineEdit对象
        for i in range(5):
            lineEdit = QLineEdit()
            lineEdits.append(lineEdit)  # 将QLineEdit对象添加到列表中
            layout.addWidget(lineEdit)  # 将QLineEdit添加到布局中

        # 使用循环设置QLineEdit的属性
        for i, lineEdit in enumerate(lineEdits):
            lineEdit.setText(f"LineEdit {i+1}")  # 设置文本内容
            lineEdit.setPlaceholderText(f"Enter text {i+1}")  # 设置占位文本
            lineEdit.setReadOnly(i % 2 == 0)  # 设置只读状态

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