如何让matplotlib在图形上显示两个字典中的数据？

import matplotlib.pyplot as plt

data1 = {'A': 10, 'B': 20, 'C': 30, 'D': 40}
data2 = {'A': 15, 'B': 25, 'C': 35, 'D': 45}

labels = list(data1.keys())
values1 = list(data1.values())
values2 = list(data2.values())

fig, ax = plt.subplots()
width = 0.35  # 柱状图的宽度
x = range(len(labels))

rects1 = ax.bar(x, values1, width, label='Data 1')
rects2 = ax.bar([i + width for i in x], values2, width, label='Data 2')

# 添加标签和标题
ax.set_xlabel('Categories')
ax.set_ylabel('Values')
ax.set_title('Data Comparison')
ax.set_xticks([i + width/2 for i in x])
ax.set_xticklabels(labels)
ax.legend()

# 显示图形
plt.show()