爬虫大作业

import requests
import re
from bs4 import BeautifulSoup
import json
import urllib
import jieba
from wordcloud import WordCloud
import matplotlib.pyplot as plt
import numpy as np
import xlwt
import jieba.analyse
from PIL import Image,ImageSequence

url='https://juejin.im/search?query=前端'
res = requests.get(url)
res.encoding = "utf-8"
soup = BeautifulSoup(res.text,"html.parser")


ajaxUrlBegin='https://search-merger-ms.juejin.im/v1/search?query=%E5%89%8D%E7%AB%AF&page='
ajaxUrlLast='&raw_result=false&src=web'
for i in range(0,25):
    ajaxUrl=ajaxUrlBegin+str(i)+ajaxUrlLast;

response=urllib.request.urlopen(ajaxUrl)
ajaxres=response.read().decode('utf-8')
json_str = json.dumps(ajaxres) 
strdata = json.loads(json_str)  
data=eval(strdata) #str转换为dict

for i in range(0,25):
    ajaxUrl = ajaxUrlBegin + str(i) + ajaxUrlLast;
    for i in range(0,19):
        result=[]
        result=data['d'][i]['title']
        print(result+'\n')
        f = open('finally.txt', 'a', encoding='utf-8')
        f.write(result)
        f.close()

f = open('finally.txt', 'r', encoding='utf-8')
str = f.read()
stringList = list(jieba.cut(str))
symbol = {"/", "(", ")", " ", "；", "！", "、", "：","+","?"," ","）","（","？","，","之","你","了","吗","】","【"}
stringSet = set(stringList) - symbol
title_dict = {}
for i in stringSet:
    title_dict[i] = stringList.count(i)
print(title_dict)

di = title_dict
wbk = xlwt.Workbook(encoding='utf-8')
sheet = wbk.add_sheet("wordCount")  
k = 0
for i in di.items():
    sheet.write(k, 0, label=i[0])
    sheet.write(k, 1, label=i[1])
    k = k + 1
wbk.save('前端数据.xls')  

font = r'C:\Windows\Fonts\simhei.ttf'
content = ' '.join(title_dict.keys())
image = np.array(Image.open('test.jpg'))
wordcloud = WordCloud(background_color='white', font_path=font, mask=image, width=1000, height=860, margin=2).generate(content)
plt.imshow(wordcloud)
plt.axis("off")
plt.show()
wordcloud.to_file('c-cool.jpg')

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