如何在字典中创建值的外观直方图？

pip install matplotlib

import matplotlib.pyplot as plt

# 创建字典
data = {'A': [1, 2, 3, 4, 5], 'B': [10, 20, 30, 40, 50], 'C': [100, 200, 300, 400, 500]}

# 计算每个值的出现次数
counts = {}
for key, value in data.items():
    counts[value] = counts.get(value, 0) + 1

# 绘制直方图
plt.hist(list(counts.values()), bins=list(counts.keys()), edgecolor='black', color='b')
plt.title("字典值外观直方图")
plt.xlabel("值")
plt.ylabel("出现次数")
plt.show()