基于来自QComboBox的用户输入添加和删除动态生成的QLineEdit小部件

from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QComboBox, QLineEdit, QPushButton, QHBoxLayout, QGroupBox, QLabel

class MainWindow(QWidget):
    def __init__(self):
        super().__init__()

        self.layout = QVBoxLayout()
        self.setLayout(self.layout)

        self.combo_box = QComboBox()
        self.combo_box.addItem("Option 1")
        self.combo_box.addItem("Option 2")
        self.combo_box.addItem("Option 3")
        self.layout.addWidget(self.combo_box)

        self.add_button = QPushButton("Add QLineEdit")
        self.add_button.clicked.connect(self.add_line_edit)
        self.layout.addWidget(self.add_button)

        self.line_edit_group = QGroupBox("QLineEdit Widgets")
        self.line_edit_layout = QVBoxLayout()
        self.line_edit_group.setLayout(self.line_edit_layout)
        self.layout.addWidget(self.line_edit_group)

    def add_line_edit(self):
        current_option = self.combo_box.currentText()
        line_edit = QLineEdit()
        line_edit.setText(current_option)
        delete_button = QPushButton("Delete")
        delete_button.clicked.connect(lambda: self.delete_line_edit(line_edit))
        line_edit_layout = QHBoxLayout()
        line_edit_layout.addWidget(QLabel(current_option + ": "))
        line_edit_layout.addWidget(line_edit)
        line_edit_layout.addWidget(delete_button)
        self.line_edit_layout.addLayout(line_edit_layout)

    def delete_line_edit(self, line_edit):
        line_edit_layout = line_edit.parent()
        line_edit_layout.deleteLater()

if __name__ == "__main__":
    app = QApplication([])
    window = MainWindow()
    window.show()
    app.exec_()