代码1

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# 来源脚本之家
import matplotlib.pyplot as plt

plt.rcParams['font.sans-serif'] = 'SimHei'

fig = plt.figure()
plt.plot([1, 2])
# 设置图像标题
plt.suptitle("这是图像标题",x=0.2,y=0.98,fontsize=20,horizontalalignment='center',verticalalignment='top')
# 设置子图标题
plt.title("这是子图标题")
# 获取默认窗口标题
current_title = fig.canvas.manager.window.windowTitle()
print("默认窗口：", current_title)

# 设置窗口标题方式1
fig.canvas.manager.window.setWindowTitle("这是窗口标题")
plt.show()

输出结果

image.png

代码2 面向对象

import matplotlib.pyplot as plt


plt.rcParams['font.sans-serif'] = 'SimHei'

fig = plt.figure(1, (9, 9))
root = fig.add_axes([0.05, 0.05, 0.9, 0.9])  # the whole canvas
ax = fig.add_axes([0.1, 0.1, 0.7, 0.7], facecolor='#EBEBF3')  # the dot plot

root.set_title(r'root axes 标题 ',x=0.5, y=0.9, fontsize=16,color="r")
ax.set_title(r'ax axes 标题',x=0.5, y=0.95, color="r")
plt.show()

输出结果

image.png

脚本之家1
脚本之家2