尝试使用jupyter笔记本中下拉菜单中的值绘制绘图

import matplotlib.pyplot as plt
import ipywidgets as widgets
from IPython.display import display

# 创建下拉菜单小部件
dropdown = widgets.Dropdown(
    options=['折线图', '柱状图', '散点图'],
    value='折线图',
    description='图形类型:'
)

# 创建输出小部件
output = widgets.Output()

# 回调函数
def plot_graph(change):
    output.clear_output()
    with output:
        if change['new'] == '折线图':
            # 绘制折线图
            x = [1, 2, 3, 4, 5]
            y = [1, 4, 9, 16, 25]
            plt.plot(x, y)
            plt.xlabel('X轴')
            plt.ylabel('Y轴')
            plt.title('折线图')
            plt.show()
        elif change['new'] == '柱状图':
            # 绘制柱状图
            x = [1, 2, 3, 4, 5]
            y = [1, 4, 9, 16, 25]
            plt.bar(x, y)
            plt.xlabel('X轴')
            plt.ylabel('Y轴')
            plt.title('柱状图')
            plt.show()
        elif change['new'] == '散点图':
            # 绘制散点图
            x = [1, 2, 3, 4, 5]
            y = [1, 4, 9, 16, 25]
            plt.scatter(x, y)
            plt.xlabel('X轴')
            plt.ylabel('Y轴')
            plt.title('散点图')
            plt.show()

# 绑定回调函数
dropdown.observe(plot_graph, names='value')

# 创建布局并显示
box_layout = widgets.Layout(display='flex', flex_flow='row', justify_content='center')
widgets.VBox([dropdown, output], layout=box_layout)