复旦大佬耗时72小时终于把Python100实战案例讲的如此通俗易懂！成功上岸进

import numpy as np

import pandas as pd

import matplotlib pyplot as plt

%matplotlib inline

import warnings

warnings.filterwarnings('ignore')

#不发出警告

from bokeh.io import output_notebook

output_notebook()

#导入notebook绘图模块

from bokeh.plottings import figure,show

#导入图标绘制，图标展示模块

from bokeh.models.annotations import Span

#导入Span模块

x=np.linspace(0,20,200)

y=np.sin(x)

#创建x,y数据

p=figure(y_range=(-2,2))

p.line(x,y)

#绘制曲线

upper=Span(location=1,#设置位置，对应坐标值

dimension='width',#设置方向，width为横向，height为纵向

line_color='olive',line_width=4#设置线颜色，线宽

p.add_layout(upper)

#绘制辅助线

lower=Span(location=1,dimension='width',line_color='firbrick',line_width=4)

p.add_layout(lower)

#绘制辅助线2

import numpy as np

import pandas as pd

import matplotlib.pyplot as plt

%matplotlib inline

import warnings

warnings.filterwarnings('ignore')

#不发出警告