Plotly (python)：如何在条形图中添加多个文本标签

import plotly.graph_objects as go

x = ['A', 'B', 'C', 'D']
y = [10, 8, 6, 4]

layout = go.Layout(
    title='Bar Chart with Multiple Text Labels',
    xaxis=dict(title='Categories'),
    yaxis=dict(title='Values')
)

fig = go.Figure(data=[go.Bar(x=x, y=y)], layout=layout)

annotations = []
for i in range(len(x)):
    annotations.append(dict(x=x[i], y=y[i], text=str(y[i]), showarrow=True, arrowhead=1, ax=0, ay=-30))
fig.update_layout(annotations=annotations)

fig.show()