tiger吴 发表于 2020-7-30 10:11:21

关于提取json数据

from bs4 import BeautifulSoup
import requests
from pyquery import PyQuery as pq
import json

url='https://www.zhihu.com/question/404413681/answer/1354281798'
headers={
'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 '
            '(KHTML, like Gecko) Chrome/83.0.4103.106 Safari/537.36'
}
html=requests.get(url,headers=headers).text
soup=BeautifulSoup(html,'lxml')

doc=pq(html)
items=doc('#js-initialData').items()
for item in items:
    print(item.text())
运行后得到一长串数据,怎么提取出其中的汉字内容尼?

zltzlt 发表于 2020-7-30 10:17:08

可以用正则提取汉字:

from bs4 import BeautifulSoup
import requests
from pyquery import PyQuery as pq
import json
import re

url = 'https://www.zhihu.com/question/404413681/answer/1354281798'
headers = {
    'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 '
                  '(KHTML, like Gecko) Chrome/83.0.4103.106 Safari/537.36'
}
html = requests.get(url, headers=headers).text
soup = BeautifulSoup(html, 'lxml')

doc = pq(html)
items = doc('#js-initialData').items()
for item in items:
    print(re.findall(r'[\u4e00-\u9fa5]+', item.text()))

tiger吴 发表于 2020-7-30 11:21:43

zltzlt 发表于 2020-7-30 10:17
可以用正则提取汉字:

不能用key索引,提取值吗?

tiger吴 发表于 2020-7-30 11:34:30

zltzlt 发表于 2020-7-30 10:17
可以用正则提取汉字:

我要提取里面的content的value

tiger吴 发表于 2020-7-30 11:46:12

zltzlt 发表于 2020-7-30 10:17
可以用正则提取汉字:

from bs4 import BeautifulSoup
import requests
from pyquery import PyQuery as pq
import json
import re

url='https://www.zhihu.com/question/404413681/answer/1354281798'
headers={
'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 '
            '(KHTML, like Gecko) Chrome/83.0.4103.106 Safari/537.36'
}
html=requests.get(url,headers=headers).text
soup=BeautifulSoup(html,'lxml')

doc=pq(html)
items=doc('#js-initialData').items()
for item in items:
    print(re.findall(r'"content":"(.*?)"',item.text()))
就算用正则提取出了content的value,怎么样把他按下图的格式打印出来尼,还有每行文字都有些符号怎么去掉尼
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