python matploblib如何将数字添加到我的条形图顶部

import matplotlib.pyplot as plt

data = [10, 20, 30, 40, 50]

plt.bar(range(len(data)), data)

for i, v in enumerate(data):
    plt.text(i, v, str(v), ha='center', va='bottom')

plt.show()

import matplotlib.pyplot as plt

data = [10, 20, 30, 40, 50]

plt.bar(range(len(data)), data)

for i, v in enumerate(data):
    plt.text(i, v, str(v), ha='center', va='bottom')

plt.show()