matplotlib.pyplot中文字体显示

方法1：

import matplotlib

font = {'family': 'MicroSoft Yahei',
       'weight': 'bold',
       'size': 12}

matplotlib.rc("font", **font)

实例：

import matplotlib
import matplotlib.pyplot as plt
import random

font = {'family': 'MicroSoft Yahei',
       'weight': 'bold',
       'size': 12}
matplotlib.rc("font", **font)

x = range(0, 120)
y = [random.randint(20,35) for i in range(120)]
plt.figure(figsize = (20, 8), dpi = 80)
plt.plot(x, y)

# 调整x轴刻度
_x = list(x)[::3]
_xtick_labels = ["10点{}分".format(i) for i in range(60)]
_xtick_labels += ["11点{}分".format(i) for i in range(60)]

# 取步长，数字和字符串一一对应，数据长度一样
plt.xticks(_x, _xtick_labels[::3], rotation = 45) # rotation 旋转角度
plt.show()

运行结果：

方法2:

import matplotlib

matplotlib.rc("font", family = "MicroSoft YaHei", weight = "bold")

实例：

import matplotlib
import matplotlib.pyplot as plt
import random

matplotlib.rc("font", family = "MicroSoft YaHei", weight = "bold")

x = range(0, 120)
y = [random.randint(20,35) for i in range(120)]

plt.figure(figsize = (20, 8), dpi = 80)
plt.plot(x, y)
# 调整x轴刻度
_x = list(x)[::3]
_xtick_labels = ["10点{}分".format(i) for i in range(60)]
_xtick_labels += ["11点{}分".format(i) for i in range(60)]
# 取步长，数字和字符串一一对应，数据长度一样
plt.xticks(_x, _xtick_labels[::3], rotation = 60) # rotation 旋转角度
plt.show()

运行输出：

方法3：

from matplotlib import font_manager

my_font = font_manager.FontProperties(fname='/System/Library/Fonts/PingFang.ttc")
# 不同系统，路径有所不同，事先查找出系统中可用的中文字体以及路径

# 调用
plt.func(...,fontproperties=my_font)

注：Linux/Mac下字体查看：

fc-list :lang=zh # 冒号前有空格 

以Ubuntu为例：

实例：

import matplotlib
import matplotlib.pyplot as plt
from matplotlib import font_manager
import random

my_font = font_manager.FontProperties(fname=r"C:\Windows\Fonts\STFANGSO.TTF")

x = range(0, 120)
y = [random.randint(20,35) for i in range(120)]

plt.figure(figsize = (20, 8), dpi = 80)
plt.plot(x, y)
# 调整x轴刻度
_x = list(x)[::3]
_xtick_labels = ["10点{}分".format(i) for i in range(60)]
_xtick_labels += ["11点{}分".format(i) for i in range(60)]
# 取步长，数字和字符串一一对应，数据长度一样
plt.xticks(_x, _xtick_labels[::3], FontProperties = my_font, rotation = 90) # rotation 旋转角度
plt.show()

运行结果：