小编nay*_*ant的帖子

我是情节破折号的新手，并尝试运行这个谷歌搜索的代码来理解输出。当我在 Windows cmd 提示符下运行以下代码时，执行返回 URL - http://127.0.0.1:3003 在 Chrome 浏览器中粘贴上述内容时，浏览器窗口中会显示加载依赖项时出错。请找到下面的代码。

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


df = pd.read_excel(
    "https://github.com/chris1610/pbpython/blob/master/data/salesfunnel.xlsx?raw=True"
)

pv = pd.pivot_table(df, index=['Name'], columns=["Status"], values=['Quantity'], aggfunc=sum, fill_value=0)


trace1 = go.Bar(x=pv.index, y=pv[('Quantity', 'declined')], name='Declined')
trace2 = go.Bar(x=pv.index, y=pv[('Quantity', 'pending')], name='Pending')
trace3 = go.Bar(x=pv.index, y=pv[('Quantity', 'presented')], name='Presented')
trace4 = go.Bar(x=pv.index, y=pv[('Quantity', 'won')], name='Won')

app = dash.Dash()
app.layout = html.Div(children=[
    html.H1(children='Sales Funnel Report'),
    html.Div(children='''National Sales Funnel Report.'''),
    dcc.Graph(
        id='example-graph', …