Matplotlib -在数据帧中列的条形图上添加值标签

import matplotlib.pyplot as plt
import pandas as pd

data = pd.DataFrame({'Category': ['A', 'B', 'C', 'D'],
                     'Value': [10, 20, 15, 25]})

plt.bar(data['Category'], data['Value'])
bars = plt.bar(data['Category'], data['Value'])

for bar in bars:
    yval = bar.get_height()
    plt.text(bar.get_x() + bar.get_width() / 2, yval, yval, ha='center', va='bottom')

plt.title('Bar Chart with Value Labels')
plt.xlabel('Category')
plt.ylabel('Value')

plt.show()