如何让Dash Plotly页面自动更新电子表格中的数据？

import dash
import dash_core_components as dcc
import dash_html_components as html
from dash.dependencies import Input, Output
import plotly.graph_objs as go

app = dash.Dash(__name__)

app.layout = html.Div([
    dcc.Interval(
        id='interval-component',
        interval=1000,  # 每隔1秒更新一次数据
        n_intervals=0
    ),
    dcc.Graph(id='live-graph'),
    html.Table(id='live-table')
])

@app.callback(
    [Output('live-graph', 'figure'),
     Output('live-table', 'children')],
    [Input('interval-component', 'n_intervals')]
)
def update_data(n):
    # 在这里编写更新数据的逻辑
    # 例如，可以从数据库或API获取最新的数据

    # 更新图表
    graph_data = go.Scatter(
        x=[1, 2, 3, 4, 5],
        y=[3, 1, 4, 2, 5],
        mode='lines+markers'
    )
    graph_layout = go.Layout(title='实时数据图表')
    graph_figure = go.Figure(data=[graph_data], layout=graph_layout)

    # 更新表格
    table_data = [
        html.Tr([html.Th('列1'), html.Th('列2')]),
        html.Tr([html.Td('数据1'), html.Td('数据2')]),
        html.Tr([html.Td('数据3'), html.Td('数据4')])
    ]

    return graph_figure, table_data

if __name__ == '__main__':
    app.run_server(debug=True)