python matplotlib画图,标题中文出现乱码怎么办？

在python种，使用matplotlib画图，标题中文出现乱码怎么办？
只需要添加两句即可

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

eg:

import numpy as np
import matplotlib.pyplot as plt
x=[1,2,3,4,5,6,7]
y=[1,2,3,4,5,6,7]
plt.plot(x,y)
plt.title("画图",fontsize=20)
plt.show()

结果

eg:

import numpy as np
import matplotlib.pyplot as plt
x=[1,2,3,4,5,6,7]
y=[1,2,3,4,5,6,7]
plt.plot(x,y)
plt.title("画图",fontsize=20)
plt.rcParams['font.sans-serif']=['SimHei']#汉字防止出现乱码
plt.rcParams['axes.unicode_minus'] = False
plt.show()