python using matplotlib drawing Chinese display into the box solutions

Question 1: Chinese coordinate axis shows the problem:

Solution:

#只需在前面加上：
from pylab import mpl  
mpl.rcParams['font.sans-serif'] = ['SimHei'] 

#指定默认字体

solution

import matplotlib.pyplot as plt

plt.rcParams['font.sans-serif']=['SimHei']    # 用来正常显示中文标签
plt.rcParams['axes.unicode_minus']=False    # 用来正常显示负号