如何使xticks在matplotlib图上具有每月间隔而不是每日间隔

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

fig, ax = plt.subplots()

dates = ['2022-01-01', '2022-02-01', '2022-03-01', '2022-04-01', '2022-05-01']
dates = [datetime.strptime(date, '%Y-%m-%d').date() for date in dates]

ax.plot(dates, [1, 2, 3, 4, 5])  # 替换 [1, 2, 3, 4, 5] 为你的实际数据
ax.xaxis.set_major_locator(mdates.MonthLocator())

ax.xaxis.set_major_formatter(mdates.DateFormatter('%Y-%m'))

plt.show()