如何在Dash中使用回调更新条形图

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

app = dash.Dash(__name__)

app.layout = html.Div([
    dcc.Graph(id='bar-chart'),
    dcc.Slider(
        id='slider',
        min=0,
        max=10,
        step=1,
        value=5
    )
])

@app.callback(
    Output('bar-chart', 'figure'),
    [Input('slider', 'value')]
)
def update_bar_chart(value):
    # 在这里根据输入的值更新条形图的数据和布局
    # 返回更新后的条形图
    return {
        'data': [
            {'x': ['A', 'B', 'C'], 'y': [value, value*2, value*3], 'type': 'bar'}
        ],
        'layout': {
            'title': 'Bar Chart',
            'xaxis': {'title': 'X'},
            'yaxis': {'title': 'Y'}
        }
    }

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