Python+pyplot绘制带文本标注的柱状图方法

import numpy as np
import matplotlib.pyplot as plt



# 生成测试数据
x = np.linspace(0, 10, 10)
y = 11-x



# 绘制柱状图
plt.bar(x, y)
# 循环，为每个柱形添加文本标注

# 居中对齐
for xx, yy in zip(x,y):
  plt.text(xx, yy+0.1, str(yy), ha='center')



# 显示图形
plt.show()