如何在pyplot (不是散点图)中的绘图标记上放置标签

import matplotlib.pyplot as plt

# 创建图表
fig, ax = plt.subplots()

# 绘制数据
x = [1, 2, 3, 4, 5]
y = [10, 8, 6, 4, 2]
ax.plot(x, y, 'ro')  # 'ro'表示红色圆点

# 在指定位置放置标签
label = 'Point'
ax.annotate(label, (x[0], y[0]), textcoords="offset points", xytext=(0,10), ha='center')

# 或者在每个数据点上放置标签
for i, j in zip(x, y):
    ax.annotate(label, (i, j), textcoords="offset points", xytext=(0,10), ha='center')

plt.show()