在Python Plotly Choropleth下方添加标题

import plotly.graph_objects as go

# 示例数据
data = dict(
    type='choropleth',
    locations=['CA', 'TX', 'NY'],
    locationmode='USA-states',
    z=[100, 200, 300],
    colorscale='Reds',
)

layout = dict(
    title='美国各州数据分布',
    geo=dict(
        scope='usa',
        projection=dict(type='albers usa'),
        showlakes=True,
        lakecolor='rgb(255, 255, 255)'
    )
)

fig = go.Figure(data=[data], layout=layout)
fig.show()

layout = dict(
    title='美国各州数据分布',
    title_x=0.5,  # 水平居中
    title_y=0.95,  # 垂直位置
    geo=dict(
        scope='usa',
        projection=dict(type='albers usa'),
        showlakes=True,
        lakecolor='rgb(255, 255, 255)'
    )
)