There are the following types of labels,

标签有以下几种，

1)X轴贴标 (1) X-axis labelling)

plt.xlabel('Number Line')
# Default labelling

plt.xlabel('Number Line', color='green')
#Font colour Changed

plt.xlabel('Number Line', color='Green', fontsize=15)
#Font size Change

plt.xlabel('Number Line', color='Green', fontsize=15, bbox=dict(facecolor='yellow', alpha=0.5))
#Background Box Addition with opaque ratio

2)Y轴贴标 (2) Y-axis labelling)

plt.ylabel('Function')
#Default Labelling

plt.xlabel('Function', color='green')
#Colour Change

plt.xlabel('Function', color='Green', fontsize=15)
#Font Size Modification

plt.xlabel('Function', color='Green', fontsize=15, bbox=dict(facecolor='yellow', alpha=0.5))
#Background Box Addition with opaque ratio

pythion代码演示pyplot标签示例 (Pythion code to demonstrate example of pyplot labelling)

import numpy as np
import matplotlib.pyplot as plt
x = np.arange(500)
y1 = np.arange(500)
for i in range(500):
y1[i] = 2*x[i] + np.random.randint(0,56)
#x-axis labelling
#default 
plt.figure()
plt.plot(x,y1)
plt.xlabel('Number Line')
#Colour
plt.figure()
plt.plot(x,y1)
plt.xlabel('Number Line', color='green')
#size 
plt.figure()
plt.plot(x,y1)
plt.xlabel('Number Line', color='Green', fontsize=15)
#Background Box
plt.figure()
plt.plot(x,y1)
plt.xlabel('Number Line', color='Green', fontsize=15, bbox=dict(facecolor='yellow', alpha=0.5))
#y-axis labelling
#default 
plt.figure()
plt.plot(x,y1)
plt.ylabel('Function')
#Colour
plt.figure()
plt.plot(x,y1)
plt.ylabel('Function', color='g')
#size 
plt.figure()
plt.plot(x,y1)
plt.ylabel('Function', color='Green', fontsize=15)
#Background Box
plt.figure()
plt.plot(x,y1)
plt.ylabel('Function', color='Green', fontsize=15, bbox=dict(facecolor='yellow', alpha=0.5))

Output:

输出：

Output is as figure

翻译自: https://www.includehelp.com/python/pyplot-labelling.aspx