用Python的matplotlib画图，怎么保证xlabel中中文用宋体，英文用新罗马

这个网址ID为夏星辰的方法二
https://www.zhihu.com/question/344490568/answer/3604121881
用的import matplotlib.pyplot as plt

plt.rcParams["font.family"]=["Times New Roman", "simSun"]
plt.rcParams["font.serif"]=["Times New Roman","SimSun"]
plt.rcParams["font.sans-serif"]=["Times New Roman","SimSun"]
plt.rcParams["mathtext.fontset"]="custom"

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