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分页函数（Python）

assert get_page(11, 6) == [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] assert get_page(11, 7) == [2, 3, 4, 5, 6,...7, 8, 9, 10, 11] assert get_page(100, 99) == [91, 92, 93, 94, 95, 96, 97, 98, 99, 100] print(get_page...(7, 5)) assert get_page(7, 5) == [1, 2, 3, 4, 5, 6, 7] assert get_page(12, 6) == [1, 2, 3, 4, 5, 6, 7...98, 99, 100] print(get_page(11, 1)) print(get_page(76, 25)) print(get_page(18, 2)) print(get_page(11,...8)) print(get_page(11, 7))

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Python爬虫入门教程——爬取自己的博

from bs4 import BeautifulSoup def get_blog_info(): headers = {'User-Agent': 'Mozilla/5.0 (X11; Linux...'Chrome/44.0.2403.89 ' 'Safari/537.36'} html = get_page...title) print(link) write_to_file(title+'\t') write_to_file(link+'\n') def get_page...(url): try: headers = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) '

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【玩转Python系列【小白必看】Python多线程爬虫：下载表情包网站的图片

定义函数 get_page() def get_page(): while not q.empty(): url = q.get() resp = requests.get...www.fabiaoqing.com/biaoqing/lists/page/{i}.html') for j in range(3): t = Thread(target=get_page...t = Thread(target=get_page) 创建一个线程，目标函数是get_page函数。 t.start() 启动线程，开始执行get_page函数。...i}.html') # 将拼接好的URL放入队列q中，用于存储要下载的网页URL for j in range(3): # 循环3次 t = Thread(target=get_page...) # 创建一个线程，目标函数是get_page函数 t.start() # 启动线程，开始执行get_page函数结束语多线程爬虫是一种高效的爬取网页内容的方式，在对大量图片进行下载时尤为有效

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爬取京东商品图片的Python实现方法

配置代理，支持HTTP和HTTPSsession.proxies = { 'http': proxy_url, 'https': proxy_url}# 示例使用会话对象发送请求def get_page...except requests.exceptions.RequestException as err: print(f'OOps: Something Else: {err}')# 使用get_page...函数获取网页内容# html_content = get_page('http://example.com')2....def get_page(url): response = requests.get(url, headers=headers) return response.text3....keyword={keyword}&enc=utf-8' html = get_page(search_url) img_urls = parse_page(html) save_images

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爬取京东商品图片的Python实现方法

支持HTTP和HTTPS session.proxies = { 'http': proxy_url, 'https': proxy_url } # 示例使用会话对象发送请求 def get_page...except requests.exceptions.RequestException as err: print(f'OOps: Something Else: {err}') # 使用get_page...函数获取网页内容 # html_content = get_page('http://example.com') 2....def get_page(url): response = requests.get(url, headers=headers) return response.text 3....keyword={keyword}&enc=utf-8' html = get_page(search_url) img_urls = parse_page(html) save_images

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手把手教你利用Python网络爬虫获取APP推广信息

我们定义get_page方法, 准备url地址和请求头headers,导入对应的库。...import re from fake_useragent import UserAgent from lxml import etree house_dict = {} #定义一个字典 def get_page...#网址 ua = UserAgent(verify_ssl=False) #随机的UserAgent kv = { 'User-Agent': ua.random} pageList = get_page...import requests import os import re from fake_useragent import UserAgent from lxml import etree def get_page...输入要爬取的页数 pageList = get_page(url, 100)#页数（网址，页数） /5 效果展示/ 1. 点击绿色按钮运行，将结果显示在控制台，如下图所示。

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Python 代码推送百度链接

1: return 1 else: return 0 except: return 0 # 获取路径 def get_page...)) return 1 except: return 0 if __name__ == "__main__": arg = sys.argv get_page...} 推送状态: {}".format(url, push_status)) return 0 except: return 0 # 获取路径 def get_page...page = create_page(1,15) for each in page: # 输出每一个链接目录树 ref = get_page

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实现一个简单Database13

void leaf_node_split_and_insert(Cursor* cursor, uint32_t key, Row* value) { */ void* old_node = get_page...old_node); uint32_t new_page_num = get_unused_page_num(cursor->table->pager); void* new_node = get_page...-Cursor* internal_node_find(Table* table, uint32_t page_num, uint32_t key) { - void* node = get_page...; +} + +Cursor* internal_node_find(Table* table, uint32_t page_num, uint32_t key) { + void* node = get_page...(table->pager, parent_page_num); + void* child = get_page(table->pager, child_page_num); + uint32_t

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抓取个人微博之 Ajax 数据爬取

Gecko) Chrome/74.0.3729.131 Safari/537.36', 'x-requested-with': 'XMLHttpRequest' } # 抓取单个页面 def get_page...weibo.append(text + '\n\t') return weibo # 获取微博总页数 def sum_page(): json = get_page...return sum if __name__ == '__main__': sum = sum_page() for page in range(sum): data = get_page

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Python搭建代理IP池（一）- 获取 IP

首先将网页获取，然后用 PyQuery 解析，解析出 IP 加端口形式的代理再返回 crawler.py import json import re from utils import get_page...(1, page_count + 1)] for url in urls: print('Crawling', url) html = get_page...www.xicidaili.com/nn/3', 'Upgrade-Insecure-Requests':'1', } html = get_page...stype=1&page={}'.format(i) html = get_page(start_url) if html:..., 4): start_url = 'http://www.kuaidaili.com/free/inha/{}/'.format(i) html = get_page

2.1K2 0

python爬虫–异步

线程池的基本使用代码粘贴 # import time # #单线程串行方式执行 # start_time = time.time() # def get_page(str): # print('正在下载...('下载完成：',str) # # name_list = ['haha','lala','duoduo','anan'] # # for i in range(len(name_list)): # get_page...end_time-start_time) import time from multiprocessing.dummy import Pool #单线程串行方式执行 start_time = time.time() def get_page...time.sleep(2) print('下载完成：',str) name_list = ['haha','lala','duoduo','anan'] pool = Pool(4) pool.map(get_page

6613 0

实现一个简单的Database8(译文)

Pager* pager; - uint32_t num_rows; + uint32_t root_page_num; } Table; @@ -127,6 +200,10 @@ void* get_page...Initialize page 0 as leaf node. + void* root_node = get_page(pager, 0); + initialize_leaf_node(...+void leaf_node_insert(Cursor* cursor, uint32_t key, Row* value) { + void* node = get_page(cursor->table...%d > %d\n", page_num, @@ -128,6 +202,10 @@ void* get_page(Pager* pager, uint32_t page_num) { }...Initialize page 0 as leaf node. + void* root_node = get_page(pager, 0); + initialize_leaf_node(

2133 0

Django与LayUI 框架实现表格分页

from MyWeb import models import json def index(request): return render(request,"index.html") def get_page...import views urlpatterns = [ path('admin/', admin.site.urls), path('',views.index), path('get_page...from MyWeb import models import json def index(request): return render(request,"index.html") def get_page...import views urlpatterns = [ path('admin/', admin.site.urls), path('',views.index), path('get_page...,"index.html") urls.py from MyWeb import views urlpatterns = [ path('',views.index), path('get_page

2.6K1 0

python爬虫–协程（初识）

'http://127.0.0.1:5000/azb','http://127.0.0.1:5000/xx','http://127.0.0.1:5000/hh' ] async def get_page...,url) tasks = [] for url in urls: c = get_page(url) task = asyncio.ensure_future(c) tasks.append...'http://127.0.0.1:5000/azb','http://127.0.0.1:5000/xx','http://127.0.0.1:5000/hh' ] async def get_page...page_text = await response.text() print(page_text) tasks = [] for url in urls: c = get_page

5192 0

爬取knewone上的信息-- coding: utf-8 -

page=' def get_page(url,data=None): wb_data = requests.get(url) soup = BeautifulSoup(wb_data.text,...link':link.get('href'), } print(data) def get_more_page(start,end): for one in range(start,end): get_page

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发爬虫和反反爬虫（下篇）

按照模块化的思路，定义get_page函数、find_imgs函数和save_img函数，使得函数框架更加的清晰。...#创建文件夹到目标路径并改变当前工作目录到指定的路径 url = 'http://jandan.net/ooxx/' #待爬取网站的url page_num = int(get_page...保存在img_addrs列表中 save_img(folder, img_addrs) #保存列表中的图片到指定目标路径下的文件夹接下来就该写的是几个自定义函数了，而在get_page...urllib.request.urlopen(url) html = response.read() return html 下边是download函数里需要调用的三个自定义子函数： def get_page

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数据结构与算法-散列表

因为已经投过票了 ---- def get_data_from_server(url): # 模拟向服务器请求 return url cache = {} def get_page(...return data get_page("www.google.com") # get info from server!...get_page("www.bing.com") # get info from server!...get_page("www.google.com") # get info from local! 冲突创建散列函数是怎样引起冲突的呢？

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今日头条街拍图片抓取

代码如下： def get_page(offset): params = { 'offset': offset, 'format': 'json', 'keyword': '街拍', 'autoload...from hashlib import md5 from multiprocessing.pool import Pool GROUP_START = 0 GROUP_END = 2 def get_page...file_path) except requests.ConnectionError: print('Failed to Save Image') def main(offset): json = get_page

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初识aiohttp

http://127.0.0.1:5000/bobo", "http://127.0.0.1:5000/coco", "http://127.0.0.1:5000/moly" ] async def get_page...response.text() print(page_text) print(url, "下载完成") tasks = [] for url in urls: task = get_page

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解决树莓派下载django的TypeE

个有效字符): 记一次解决树莓派下载Django库 ——报错为TypeError: unsupported operand types for -=: 'Retry' and 'int'的问题(可能该问题Linux..._get_page(location) File "/usr/lib/python2.7/dist-packages/pip/index.py", line 683, in _get_page...HTMLPage.get_page(link, session=self.session) File "/usr/lib/python2.7/dist-packages/pip/index.py", line 792, in get_page..._get_page(location) File "/usr/lib/python2.7/dist-packages/pip/index.py", line 683, in _get_page...sudo python -m pip install --upgrade --force pip 再次sudo pip安装,无果 last 感谢大神的分享我才发觉这是一个新手的通用问题: 树莓派自带的Linux

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