如何在QDoubleSpinBox后缀中使用上标

from PyQt5.QtWidgets import QApplication, QDoubleSpinBox, QVBoxLayout, QWidget

app = QApplication([])

widget = QWidget()
layout = QVBoxLayout(widget)

spinbox = QDoubleSpinBox()
spinbox.setSuffix('<sup>2</sup>')  # 设置后缀为上标2
layout.addWidget(spinbox)

widget.show()
app.exec()

from PyQt5.QtWidgets import QApplication, QDoubleSpinBox, QVBoxLayout, QWidget

app = QApplication([])

widget = QWidget()
layout = QVBoxLayout(widget)

spinbox = QDoubleSpinBox()
spinbox.setStyleSheet('QDoubleSpinBox::suffix {'
                      'font-size: 10px;'
                      'color: red;'
                      '}')
spinbox.setSuffix('<sup>2</sup>')  # 设置后缀为上标2
layout.addWidget(spinbox)

widget.show()
app.exec()