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环境说明：macOS系统

一、现象：

原先代码是这样的

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
import warnings
warnings.filterwarnings('ignore')plt.rcParams['font.sans-serif'] = ['SimHei']
plt.rcParams['axes.unicode_minus'] = Falsefig, axs = plt.subplots(2, 5, figsize=(10, 4), sharex=True, sharey=True)
fig.suptitle('样例1', size=20)
for i in range(2):for j in range(5):axs[i][j].scatter(np.random.randn(10), np.random.randn(10))axs[i][j].set_title('第%d行，第%d列'%(i+1,j+1))axs[i][j].set_xlim(-5,5)axs[i][j].set_ylim(-5,5)if i==1: axs[i][j].set_xlabel('横坐标')if j==0: axs[i][j].set_ylabel('纵坐标')
fig.tight_layout()

二、解决方案

后面经过找各种资料，尝试一番，终于解决了我的问题

1.将 SimHei.ttf ，下载到当前运行目录中

2.绘图中涉及标题、横纵坐标等，加上 FontProperties = font 即可

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
import warnings
warnings.filterwarnings('ignore')from matplotlib.font_manager import FontProperties
font = FontProperties(fname='SimHei.ttf', size = 15)fig, axs = plt.subplots(2, 5, figsize=(10, 4), sharex=True, sharey=True)
plt.suptitle('样例1', size=20, FontProperties = font)
for i in range(2):for j in range(5):axs[i][j].scatter(np.random.randn(10), np.random.randn(10))axs[i][j].set_title('第%d行，第%d列'%(i+1,j+1), FontProperties = font)axs[i][j].set_xlim(-5,5)axs[i][j].set_ylim(-5,5)if i==1: axs[i][j].set_xlabel('横坐标', FontProperties = font)if j==0: axs[i][j].set_ylabel('纵坐标', FontProperties = font)
plt.show()

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数据代码参考：阿里云天池
解决方案：网上各种资料尝试一番