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中文文档：scrapy 4 步：新建项目：（scrapy startproject projectname）:新建爬虫项目创建爬虫：scrapy genspider spidername “http://www.xxx.cn/”明确目标：（编写items.py）：明确想要抓取的目标制作爬虫：（spiders/xxspider.py）:制作爬虫开始爬取的网页编写p...

appenda = [1,2,3]b = [4,5,6]a.append(b)print a结果：[1, 2, 3, [4, 5, 6]]extenda = [1,2,3]b = [4,5,6]a.extend(b)print a结果：[1, 2, 3, 4, 5, 6]

import osdef ListFilesToTxt(input_dir, file, wildcard, recursion): exts = wildcard.split(" ") for root, subdirs, files in os.walk(input_dir): for name in files: for ext ...