Matplotlib子图如何调整时间序列x轴？

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

fig, ax = plt.subplots()

dates = [...]  # 时间序列数据
values = [...]  # 对应的数值数据

dates = [mdates.date2num(date) for date in dates]

ax.plot_date(dates, values, '-')

ax.xaxis.set_major_locator(mdates.AutoDateLocator())  # 自动选择日期刻度
ax.xaxis.set_major_formatter(mdates.DateFormatter('%Y-%m-%d'))  # 设置日期格式

fig.autofmt_xdate()  # 自动调整x轴标签的角度，避免重叠

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

fig, ax = plt.subplots()

dates = [...]  # 时间序列数据
values = [...]  # 对应的数值数据

dates = [mdates.date2num(date) for date in dates]

ax.plot_date(dates, values, '-')

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

fig.autofmt_xdate()

plt.show()