在Bokeh服务器中更新hbar_stack

from bokeh.io import curdoc
from bokeh.plotting import figure
from bokeh.models import ColumnDataSource
from bokeh.layouts import row

data = {'categories': ['Category 1', 'Category 2', 'Category 3'],
        'values1': [10, 20, 30],
        'values2': [15, 25, 35]}
source = ColumnDataSource(data=data)

p = figure(x_range=data['categories'], plot_height=400, plot_width=600)
p.hbar_stack(['values1', 'values2'], y='categories', source=source)

def update_data():
    # 更新数据源中的数据
    new_data = {'categories': ['Category 1', 'Category 2', 'Category 3'],
                'values1': [20, 30, 40],
                'values2': [25, 35, 45]}
    source.data = new_data

button = Button(label="Update", button_type="success")
button.on_click(update_data)

layout = row(p, button)
curdoc().add_root(layout)