web_wq

**1 异常表现**django.core.exceptions.SuspiciousFileOperation: The joined path is located outside of the base path component.2 解决方案在静态文件有 os.path.join(HERE, ‘static/’)将 里的 “/” 去掉 os.path.join(HERE, ...

1.知识点：random函数，循环语句，函数调用。import randomdef play(): diannao = random.randint(1, 3) return diannaodef main(): while True: diannao = play() # print(diannao) Pers...

1.列表（list）保存为txt。#list转txtlist = ['a','b','c','d']filename = open('D:\\soft\\Anaconda3\\list.txt','w') for i in list: filename.write(i) filename.write('\n')filename.close()2.字典（dic...

1.网页分析。进入https://www.qidian.com/，点击全部，进行翻页，你就会发现一个规律，url=https://www.qidian.com/all?orderId=&style=1&pageSize=20&siteid=1&pubflag=0&hiddenField=0&page=0（1,2,3，……）那么我么可以这...

1.爬取豆瓣电影网页源码。import requestsurl = 'https://movie.douban.com/top250?start='+str(start)+'&filter='data = requests.get(url)# print(data.text)2.分析网页结构，爬取图片src，https://movie.douban.com/top2...

话不多说，直接上代码。mport urllib.requestimport refrom lxml import etreedef gethtml(start): #str(start)=0表示第一页，50表示第二页，……。 url = 'http://tieba.baidu.com/f?kw=%E9%AB%98%E8%80%83&ie=utf-8&p...