47 lines
1.7 KiB
Python
47 lines
1.7 KiB
Python
from bs4 import BeautifulSoup
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from urllib.request import urlopen
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# 最简单的情况
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html = urlopen("https://mofanpy.com/static/scraping/basic-structure.html").read().decode('utf-8')
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print('\n显示网页的代码信息1：\n\n ----------------开始----------------\n', html, '\n\n----------------结束----------------') # 显示网页的代码信息
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soup = BeautifulSoup(html, features='lxml') # 把网页放进BeautifulSoup
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print('\n获取标签_标题h1_中的内容soup.h1：\n', soup.h1)
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print('\n获取标签_段落p_中的内容soup.p：\n', soup.p)
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print('\n获取标签_链接a_中的内容soup.a：\n', soup.a)
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all_href = soup.find_all('a')
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print('\n获取所有"a标签"的内容soup.find_all(‘a’)：\n', all_href)
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print('\n获取某个字典的值_1：')
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for a in all_href:
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print(a)
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print(a['href'])
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all_href = [a['href'] for a in all_href]
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print('\n获取某个字典的值_2：\n', all_href, '\n')
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# 加入CSS内容
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html = urlopen("https://mofanpy.com/static/scraping/list.html").read().decode('utf-8')
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print('\n显示网页的代码信息2：\n\n ----------------开始----------------\n', html, '\n\n----------------结束----------------') # 显示网页的代码信息
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soup = BeautifulSoup(html, features='lxml') # 把网页放进BeautifulSoup
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print('\n利用class筛选出所需要的信息：')
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month = soup.find_all('li', {"class": "month"})
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print(month, '\n')
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print('只显示文本：')
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for m in month:
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print(m.get_text())
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print('\n 多次筛选：')
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january = soup.find('ul', {"class": 'jan'})
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print(january, '\n')
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d_january = january.find_all('li') # use january as a parent
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print(d_january, '\n')
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for d in d_january:
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print(d.get_text()) |