QTableview、PySide2中单元格的背景色

from PySide2.QtWidgets import QApplication, QTableView, QStyledItemDelegate, QStyleOptionViewItem
from PySide2.QtGui import QStandardItemModel, QColor, QPainter
from PySide2.QtCore import Qt

class CustomDelegate(QStyledItemDelegate):
    def paint(self, painter, option, index):
        # 获取单元格的数据
        data = index.data(Qt.DisplayRole)
        
        # 设置单元格的背景色为红色
        painter.fillRect(option.rect, QColor(255, 0, 0))
        
        # 绘制文本
        painter.drawText(option.rect, Qt.AlignCenter, str(data))

if __name__ == '__main__':
    app = QApplication([])
    
    # 创建模型和视图
    model = QStandardItemModel()
    model.setItem(0, 0, QStandardItem('Cell 1'))
    model.setItem(0, 1, QStandardItem('Cell 2'))
    
    view = QTableView()
    view.setModel(model)
    
    # 设置委托对象
    delegate = CustomDelegate()
    view.setItemDelegate(delegate)
    
    view.show()
    app.exec_()