Python 具有相同图例 colored颜色 和标签的堆叠子图

您可以直接 for each 轨迹设置填充 colored颜色 ，如下所示:

from plotly.subplots import make_subplots
import plotly.graph_objects as go

# Sample data
x = [1, 2, 3, 4, 5]
y1 = [1, 2, 4, 8, 16]
y2 = [1, 3, 6, 10, 15]
y3 = [1, 4, 8, 12, 16]

# Create subplot figure with two subplots
fig = make_subplots(rows=1, cols=2, subplot_titles=("Subplot 1", "Subplot 2"))

# Add stacked area plot to subplot 1

fig.add_trace(go.Scatter(x=x,
                         y=y1,
                         line={"color":"blue"},
                         fillcolor="blue",
                         mode="lines",
                         stackgroup="one",
                         name="A",
                         legendgroup="A"),
              row=1,
              col=1)
fig.add_trace(go.Scatter(x=x,
                         y=y2,
                         line={"color":"red"},
                         fillcolor="red",
                         mode="lines",
                         stackgroup="one",
                         name="B"),
              row=1,
              col=1)

# Add stacked area plot to subplot 2
fig.add_trace(go.Scatter(x=x,
                         y=y1,
                         line={"color":"blue"},
                         fillcolor="blue",
                         mode="lines",
                         stackgroup="two",
                         name="A",
                         legendgroup="A",
                         showlegend=False),
              row=1,
              col=2)
fig.add_trace(go.Scatter(x=x,
                         y=y3,
                         line={"color":"red"},
                         fillcolor="red",
                         mode="lines",
                         stackgroup="two",
                         name="C"),
              row=1,
              col=2)
# Update layout
fig.update_layout(title_text="Stacked Area Plots on Subplots",
                  showlegend=True)
# Show figure
fig.show(renderer="browser") # or any other renderer

或者，你可以像这里描述的那样做.(https://community.plotly.com/t/automatically-pick-colors-when-using-add-trace/59075/2)

我用参数legendgroup来分组，用showlegend=False来隐藏一个.参数line使线条的 colored颜色 与填充相匹配.