使用plotly在日期轴中设置不同的周末背景颜色

import plotly.graph_objects as go
from datetime import datetime

fig = go.Figure()

fig.update_layout(
    xaxis_range=['2022-01-01', '2022-12-31'],
    xaxis_title='日期'
)

def is_weekend(date):
    return date.weekday() >= 5

start_date = datetime(2022, 1, 1)
end_date = datetime(2022, 12, 31)

current_date = start_date
while current_date <= end_date:
    if is_weekend(current_date):
        fig.add_annotation(
            x=current_date,
            y=1,
            xref='x',
            yref='paper',
            showarrow=False,
            text='',
            bgcolor='lightgrey',
            opacity=0.3
        )
    current_date += timedelta(days=1)

fig.show()