使用plotly更改图表上的字体

import plotly.graph_objects as go

fig = go.Figure()

fig.add_trace(go.Scatter(x=[1, 2, 3], y=[4, 5, 6], name='数据系列1'))

fig.update_layout(
    title='图表标题',
    xaxis=dict(
        title='X轴标题',
        titlefont=dict(
            family='Arial, sans-serif',
            size=18,
            color='black'
        )
    ),
    yaxis=dict(
        title='Y轴标题',
        titlefont=dict(
            family='Arial, sans-serif',
            size=18,
            color='black'
        )
    ),
    font=dict(
        family='Arial, sans-serif',
        size=12,
        color='black'
    )
)

fig.show()