爬虫 大作业


1.选一个自己感兴趣的主题或网站。(所有同学不能雷同)


2.用python 编写爬虫程序,从网络上爬取相关主题的数据。


3.对爬了的数据进行文本分析,生成词云。


4.对文本分析结果进行解释说明。


5.写一篇完整的博客,描述上述实现过程、遇到的问题及解决办法、数据分析思想及结论。


6.最后提交爬取的全部数据、爬虫及数据分析源代码。


import
requests from bs4 import BeautifulSoup import json import jieba.analyse from PIL import Image import numpy as np import matplotlib.pyplot as plt from wordcloud import WordCloud,ImageColorGenerator url = "https://item.btime.com/36i90hfhkt3838be1gof3cla1ka?from=haozcxw" res = requests.get(url) res.encoding = 'utf-8' soup = BeautifulSoup(res.text,'html.parser') title = soup.select('.title')[0].text content = soup.select('.content-text')[0].text info = soup.select('.edit-info')[0].text au=info[info.find('责任编辑:'):].split()[0].lstrip('责任编辑:') print(title,content,au) f = open('content.txt', 'a', encoding='utf-8') f.write(content) f.close() strl = ''',。、‘’ ''' for i in strl: ls = content.replace(i," ") print(ls) lyric= '' f=open('content.txt','r', encoding='utf-8') for i in f: lyric+=f.read() result=jieba.analyse.textrank(lyric,topK=50,withWeight=True) keywords = dict() for i in result: keywords[i[0]]=i[1] print(keywords) image= Image.open('t01c9f26bac34842d0d.jpg') graph = np.array(image) wc = WordCloud(font_path='./fonts/simhei.ttf',background_color='White',max_words=50,mask=graph) wc.generate_from_frequencies(keywords) image_color = ImageColorGenerator(graph) plt.imshow(wc) plt.imshow(wc.recolor(color_func=image_color)) plt.axis("off") plt.show() wc.to_file('d.jpg')

 

posted @ 2018-04-24 19:12  099吴海经  阅读(166)  评论(0编辑  收藏  举报