Matplotlib:在x轴上显示选定的日期标签

import matplotlib.pyplot as plt
import matplotlib.dates as mdates

dates = ['2022-01-01', '2022-01-02', '2022-01-03', '2022-01-04', '2022-01-05']
values = [10, 15, 8, 12, 9]

dates = [datetime.datetime.strptime(date, "%Y-%m-%d").date() for date in dates]

fig, ax = plt.subplots()
ax.plot(dates, values)

# 设置x轴的日期标签格式
ax.xaxis.set_major_formatter(mdates.DateFormatter('%Y-%m-%d'))

# 设置x轴的刻度间隔
ax.xaxis.set_major_locator(mdates.DayLocator(interval=1))

# 旋转日期标签，使其更易读
plt.xticks(rotation=45)

# 显示图表
plt.show()