将表单添加到Dash/Plotly应用程序

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.Input(id='input-1', type='text', placeholder='Enter a value'),
    html.Button('Submit', id='button'),
    html.Div(id='output')
])

@app.callback(
    Output('output', 'children'),
    [Input('button', 'n_clicks')],
    [State('input-1', 'value')]
)
def update_output(n_clicks, input1_value):
    if n_clicks is not None:
        return f'The input value is "{input1_value}"'

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