
“爬虫”(Web Crawler)是一种自动化程序或脚本,主要用于在互联网上系统地浏览、抓取和存储网页数据。以下是详细解释:
爬虫通过模拟人类浏览网页的行为,自动访问目标网站,解析页面内容并提取所需信息(如文本、链接、图片等)。它通常从“种子URL”开始,逐层追踪页面中的超链接,形成大规模数据采集。
robots.txt
文件,控制抓取频率和范围。常用爬虫框架包括Python的Scrapy
、BeautifulSoup
,以及无头浏览器工具Selenium
。开发者需根据需求选择技术方案,并注意反爬机制(如验证码、IP封禁)的应对。
若需进一步了解技术实现或合规操作建议,可提供更具体的方向继续探讨。
爬虫,是一种模拟人工进行数据抓取的程序。它可以模拟人的搜索行为,在网络上自动采集数据。
The English translation of "爬虫" is "web crawler" or "spider". It is a program that simulates manual data crawling, automatically collecting data on the internet in a way that imitates human behavior.
The English pronunciation of "爬虫" is "pá chóng".
In English, "web crawler" or "spider" is commonly used to refer to a program that crawls the web. Web crawlers are often used for tasks such as web indexing, data mining, and automated testing.
1. Google uses web crawlers to index and search the web.(谷歌使用网络爬虫来进行网页索引和搜索。)
2. Our company uses web crawlers to collect data on our compe*****s.(我们公司使用网络爬虫来收集我们竞争对手的数据。)
Synonyms of "web crawler" or "spider" include "web scraper" and "data spider".(“网络爬虫”或“蜘蛛”的同义词包括“网页抓取器”和“数据蜘蛛”。)
The antonym of "web crawler" or "spider" is "web indexer".(“网络爬虫”或“蜘蛛”的反义词是“网页索引器”。)
"Web crawler" is a commonly used term in the field of computer science and internet technology. Its use is growing with the increasing importance of web data analysis and mining.(“网络爬虫”是计算机科学和互联网技术领域常用的术语,随着网页数据分析和挖掘的重要性不断增长,它的使用也在增加。)
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