大數(shù)據(jù)分析作業(yè)#1.爬數(shù)據(jù)from os import writeimport requests #獲取網(wǎng)頁(yè)源碼：import urllib.requestfrom bs4 import BeautifulSoup #用來(lái)解析解析 HTML 文檔import time#2.數(shù)據(jù)預(yù)處理import jieba #分詞、去停用詞等#3.文本特征工程(向量化)from sklearn.feature_extraction.text import CountVectorizerfrom skl