Python 单元格着色后保留熊猫显示格式

在给单元格着色后，如何保留百分比格式

import pandas as pd

sample_tab = pd.DataFrame({'a': [-0.1, 0.2],
                           'b': [0, 0.5]})

pd.options.display.float_format = '{:.1f}%'.format

sample_tab.style.apply(lambda x: ["background: red" if v < 0 else "background: green" if v > 0 else "" for v in x], axis = 1)

使用.format:.n%在应用apply函数后

sample_tab = pd.DataFrame({'a': [-0.132, 0.234], 'b': [0, 0.534]})
sample_tab.style.apply(lambda x: ["background: red" if v < 0 else "background: green" if v > 0 else "" for v in x], axis = 1).format("{:.2}%")

sample_tab.style.apply(lambda x: ["background: red" if v < 0 else "background: green" if v > 0 else "" for v in x], axis = 1).format("{:.3}%")