pyplot未在图形上显示x轴：import pandas as pd

import matplotlib.pyplot as plt

df = pd.read_csv('sitka_weather_2014.csv')

df['AKST'] = pd.to_datetime(df.AKST)

df['Dates'] = df['AKST'].dt.strftime('%b %d, %Y')

df.set_index("Dates", inplace= True)

# Plot Data

fig = plt.figure(dpi=256, figsize=(14, 7))

plt.title("Daily high and low temperature - 2014")

df['Max TemperatureF'].plot(linewidth=1, c='blue', label="Max Temperature °F")

df['Min TemperatureF'].plot(linewidth=1, c='red', label="Min Temperature °F")

plt.grid(True)

plt.rc('grid', linestyle=":", linewidth=1, color='gray')

plt.legend(loc='upper left')

plt.xlabel('', fontsize=10)

plt.ylabel("Temperature (°F)", fontsize=10)

plt.tick_params(axis='both', which='major', labelsize=10)

fig.autofmt_xdate(rotation=45)

plt.show()

x轴应该是包含日期的Pandas数据帧(df)的索引。