python画图中文不显示问题的解决方法

目录

• 前言
• 一、plt.title中文显示的解决：
• 二、plt.plot中文显示的解决：
• 三、供参考代码
• 总结

前言

python画图，如果用英文显示基本没有问题，但是中文可能会有乱码或者不显示的情况。

经过个人的测试，下图中“横轴”，“纵轴”字样的中文显示没有什么大问题，主要是plt.title部分和plt.plot部分的显示
 

一、plt.title中文显示的解决：

from matplotlib.font_manager import FontProperties
font_set = FontProperties(fname=r\"c:\\windows\\fonts\\SIMLI.TTF\", size=15)
plt.title(u\'小明的标题\', FontProperties=font_set)

FontProperties中加载的就是本地的字体

路径：C:\\Windows\\Fonts

选中字体鼠标右键属性即可复制名字进行替换

font_set = FontProperties(fname=r\"c:\\windows\\fonts\\SIMLI.TTF\", size=15)

从改变字体的结果来看，横纵坐标和标题区域受影响，plt.plot不受影响

二、plt.plot中文显示的解决：

与上述类似，加下列一行即可

plt.legend(prop={\'family\':\'SimHei\',\'size\':15})

三、供参考代码

from matplotlib import pyplot
import matplotlib.pyplot as plt
from matplotlib.font_manager import FontProperties
from matplotlib.ticker import MultipleLocator, FormatStrFormatter 
font_set = FontProperties(fname=r\"c:\\windows\\fonts\\simsun.ttc\", size=15)
import matplotlib
import numpy as np
%matplotlib inline

plt.rcParams[\'figure.figsize\'] = (12.0, 8.0) # set default size of plots
plt.rcParams[\'image.interpolation\'] = \'nearest\'
plt.rcParams[\'image.cmap\'] = \'gray\'
# plt.rcParams[\'font.sans-serif\']=[\'SimHei\']
# plt.rcParams[\'axes.unicode_minus\']=False     
# 设置标题大小
plt.rcParams[\'font.size\'] = \'16\'


fig = plt.figure()
matplotlib.rcParams.update(
{
\'text.usetex\': False,
\'font.family\': \'stixgeneral\',
\'mathtext.fontset\': \'stix\',
}
)
# myfont = FontProperties(fname=\'/homenuxidc/.local/fonts/文泉驿正黑.ttf\')


x = range(0,102,2)

x = [str(x) for x in list(x)]

x = range(len(x))

#这里如果取得值，最好省略，否则冗余代码太多
dj1=[0.140885022563663,0.285128051316358,0.331236115292078,0.372582750937596,0.463174450139405,0.586773503380428,0.542598182149781,0.542598182149781,0.564956686389027,0.542598182149781,0.519630577568173,0.428649426296771,0.676284101462148,0.635875231620977,0.564956686389027,0.542598182149781,0.564956686389027,0.62899995822798,0.676284101462148,0.721874028834649,0.676284101462148,0.702515362688485,0.682890636232397,0.557567115066442,0.564956686389027,0.635875231620977,0.656252254277025,0.676284101462148,0.721874028834649,0.62899995822798,0.62899995822798,0.702515362688485,0.759939881400332,0.702515362688485,0.696005029828444,0.656252254277025,0.696005029828444,0.676284101462148,0.608105164606941,0.741002175030875,0.721874028834649,0.702515362688485,0.721874028834649,0.62899995822798,0.608105164606941,0.682890636232397,0.676284101462148,0.702515362688485,0.696005029828444,0.696005029828444,0.696005029828444]

plt.plot(x, dj1,marker=\'s\',label=u\'小明\')

plt.grid(linestyle=\'--\')  
plt.grid(axis=\"x\")
plt.title(u\'SimHei\', fontproperties=font_set)
plt.title(\'小明的标题\')
plt.legend()  # 让图例生效

y_major_locator=MultipleLocator(0.1)

ax=plt.gca()
ax.yaxis.set_major_locator(y_major_locator)
plt.ylim(0,1)

plt.xlim(0,55)

plt.margins(0)
plt.subplots_adjust(bottom=0.001)

plt.xlabel(\"横轴\",fontproperties=font_set) #X轴标签
plt.ylabel(\"纵轴\",fontproperties=font_set) #Y轴标签
plt.legend(prop={\'family\':\'SimHei\',\'size\':15})

总结