如何从QTableView检索数据

# 导入必要的模块
from PyQt5.QtWidgets import QApplication, QMainWindow, QTableView, QVBoxLayout, QWidget
from PyQt5.QtCore import Qt, QAbstractTableModel

# 自定义数据模型
class TableModel(QAbstractTableModel):
    def __init__(self, data):
        super().__init__()
        self.data = data

    def rowCount(self, parent):
        return len(self.data)

    def columnCount(self, parent):
        return len(self.data[0])

    def data(self, index, role):
        if role == Qt.DisplayRole:
            row = index.row()
            col = index.column()
            return str(self.data[row][col])

        return None

# 创建应用程序和主窗口
app = QApplication([])
window = QMainWindow()

# 创建数据
data = [
    ['John', 'Doe', 'john.doe@example.com'],
    ['Jane', 'Smith', 'jane.smith@example.com'],
    ['Bob', 'Johnson', 'bob.johnson@example.com']
]

# 创建数据模型和表格视图
model = TableModel(data)
tableView = QTableView()
tableView.setModel(model)

# 设置布局并显示窗口
layout = QVBoxLayout()
layout.addWidget(tableView)

widget = QWidget()
widget.setLayout(layout)
window.setCentralWidget(widget)
window.show()

# 从QTableView检索数据
for row in range(model.rowCount(None)):
    for col in range(model.columnCount(None)):
        data = model.data(model.index(row, col), Qt.DisplayRole)
        print(f"Row {row}, Column {col}: {data}")