利用python提取网站曲线图数据

Michael阿明

发布于 2021-02-20 14:31:05

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文章被收录于专栏：Michael阿明学习之路Michael阿明学习之路

数据1

数据目标：曲线图

F12，如图位置输入JSON.stringify(dataSeries.dataPoints)

copy，粘贴到data.txt

数据是一个列表，里面是多个字典

编写程序如下：

import json as js
datafile = 'data1.txt'
resultfile = 'result.txt'
result = open(resultfile,'w',encoding='utf-8')
with open(datafile,'r',encoding='utf-8') as file:
    data = js.load(file)
for data_i in data:
    for k,v in data_i.items():
        if k == 'x':
            strline = v[0:10] + '   '
        if k == 'y':
            strline = strline + str(v)
    result.write(strline+'\n')
result.close()

得到数据结果

数据2

数据目标：曲线图

查看图形源代码

找到数据所在行

复制到文本

编写程序

import json as js
datafile = 'data.txt'
resultfile = 'result.txt'
result = open(resultfile,'w',encoding='utf-8')
with open(datafile,'r',encoding='utf-8') as file:
    data = js.load(file)
for data_i in data:
    strline = ''
    for v in data_i:
            strline = strline + str(v) + '    '
    result.write(strline+'\n')
result.close()