在Plotly.py动画中防止颜色栏上的自动缩放

import plotly.graph_objects as go
import numpy as np

# 生成示例数据
x = np.linspace(0, 2*np.pi, 100)
y = np.sin(x)
z = np.cos(x)

# 创建动画帧
frames = []
for i in range(len(x)):
    frame = go.Frame(data=[go.Scatter(x=x[:i+1], y=y[:i+1], mode='lines', name='sin'),
                           go.Scatter(x=x[:i+1], y=z[:i+1], mode='lines', name='cos')],
                    layout=go.Layout(title=f'Frame {i+1}', showlegend=True))
    frames.append(frame)

# 创建动画图表
fig = go.Figure(data=[go.Scatter(x=x[:1], y=y[:1], mode='lines', name='sin'),
                      go.Scatter(x=x[:1], y=z[:1], mode='lines', name='cos')],
                layout=go.Layout(title='Plotly Animation', showlegend=True),
                frames=frames)

# 设置颜色栏的自动缩放为False
fig.update_layout(coloraxis_colorbar=dict(autorange=False))

# 显示动画图表
fig.show()