在dash中返回几条轨迹图

import dash
import dash_core_components as dcc
import dash_html_components as html
import plotly.graph_objs as go

app = dash.Dash(__name__)

data = [
    go.Scatter(
        x=[1, 2, 3, 4, 5],
        y=[1, 3, 2, 4, 3],
        mode='lines',
        name='轨迹图1'
    ),
    go.Scatter(
        x=[1, 2, 3, 4, 5],
        y=[2, 4, 1, 3, 2],
        mode='lines',
        name='轨迹图2'
    ),
    go.Scatter(
        x=[1, 2, 3, 4, 5],
        y=[3, 2, 4, 1, 4],
        mode='lines',
        name='轨迹图3'
    )
]

layout = go.Layout(
    title='多条轨迹图示例',
    xaxis=dict(title='X轴'),
    yaxis=dict(title='Y轴')
)

figure = go.Figure(data=data, layout=layout)

app.layout = html.Div(children=[
    html.H1(children='多条轨迹图示例'),
    dcc.Graph(
        id='graph',
        figure=figure
    )
])

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