不同的轴标签格式取决于使用绘图的值

import matplotlib.pyplot as plt

x = [1, 2, 3, 4, 5]
y = [10, 20, 25, 30, 35]

plt.plot(x, y)
plt.xlabel('X轴')
plt.ylabel('Y轴')
plt.title('数值轴标签示例')
plt.show()

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

dates = [datetime(2023, 1, 1), datetime(2023, 2, 1), datetime(2023, 3, 1), datetime(2023, 4, 1)]
values = [10, 20, 25, 30]

plt.plot(dates, values)
plt.gca().xaxis.set_major_formatter(mdates.DateFormatter('%Y-%m-%d'))
plt.xlabel('日期')
plt.ylabel('值')
plt.title('时间轴标签示例')
plt.show()

import matplotlib.pyplot as plt

categories = ['A', 'B', 'C', 'D']
values = [15, 30, 45, 60]

plt.bar(categories, values)
plt.xlabel('类别')
plt.ylabel('值')
plt.title('分类轴标签示例')
plt.show()

import matplotlib.pyplot as plt

labels = ['A', 'B', 'C', 'D']
sizes = [15, 30, 45, 10]
percentages = [f'{size/sum(sizes)*100:.1f}%' for size in sizes]

plt.pie(sizes, labels=percentages, autopct='%1.1f%%')
plt.title('百分比轴标签示例')
plt.show()

plt.xticks(rotation=45)

plt.xticks(fontsize=8)

plt.gca().xaxis.set_major_formatter(mdates.DateFormatter('%Y-%m-%d'))