1、plot繪制折線圖

from matplotlib import pyplot as plt

x = range(2, 26, 2)
y = [15, 13, 14.5, 17, 20, 25, 26, 26, 27, 22, 18, 15]

# 設置圖片大小
plt.figure(figsize=(20, 8), dpi=180)
# 繪制圖形，plot折線圖
plt.plot(x, y)
# 保存圖形
plt.savefig("14.png")
# 展示圖形
plt.show()

2、plot圖片的相關設置

from matplotlib import pyplot as plt

x = range(2, 26, 2)
y = [15, 13, 14.5, 17, 20, 25, 26, 26, 27, 22, 18, 15]

# 設置圖片大小
plt.figure(figsize=(20, 8), dpi=80)

# 繪制圖形，plot折線圖
plt.plot(x, y)

# 設置x軸的刻度
plt.xticks(range(0,25))

# 設置y軸的刻度
max_y=max(y)
min_y=min(y)
yticks_labels=list(range(min_y,max_y+1))[::2]
plt.yticks(yticks_labels)

3、plot相關設置2

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

# 設置局部字體
my_font = font_manager.FontProperties(fname="C:\Windows\Fonts\STSONG.TTF")

# 設置全局字體
# fc-list查看字體
font = {‘family‘: ‘Microsoft Yahei‘,
        ‘weight‘: ‘bold‘,
        }
matplotlib.rc("font", **font)

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

# 圖大小
plt.figure(figsize=(20, 8), dpi=80)

# 繪制折線圖
plt.plot(x, y)

# x軸線刻度
_xticks_labels = ["10時{}分".format(i) for i in range(1, 61)]
_xticks_labels += ["11時{}分".format(i) for i in range(1, 61)]
# print(_xticks_labels)
# plt.xticks(list(x)[::10],_xticks_labels[::10],rotation=30,fontproperties=my_font)
plt.xticks(list(x)[::10], _xticks_labels[::10], rotation=30)

plt.show()

matplotlib-折線圖