CTF | bugku | 秋名山车神

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@Modify Time      @Author   
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2019/8/31 19:55   laoalo    
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import requests
from lxml import etree

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eval():将字符串str当成有效的表达式来求值并返回计算结果
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url = ‘http://123.206.87.240:8002/qiumingshan/‘
response = requests.session()
re = response.get(url=url).content.decode(‘utf-8‘)
elements = etree.HTML(re).xpath(‘//div/text()‘)[0][0:-3]
result = eval(elements)
print(result,‘\n‘)
data = {
    ‘value‘:result
}
flag = response.post(url=url,data=data).content.decode(‘utf-8‘)
# flag_x = etree.HTML(flag)
# # print(etree.tostring(flag_x,encoding=‘utf-8‘).decode(‘utf-8‘))
print(flag)