<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Aaronqihang的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/Aaronqihang</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Aaronqihang]]></copyright><item><title><![CDATA[爬虫前置练习：with_open（txt&csv）实战练习题]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/168766324</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/168766324</guid><author>Aaronqihang</author><pubDate>Thu, 22 Oct 2026 15:44:26 +0800</pubDate><description><![CDATA[本文通过实战练习巩固爬虫文件存储基础，涵盖txt文件的r/w/a模式读写及strip()清理空白，重点讲解csv模块中DictWriter与DictReader的使用。强调newline=""和utf-8-sig编码避免乱码，总结writerow与writerows区别，并通过f.tell() == 0判断文件是否为空，防止重复写入表头，适用于爬虫数据追加场景，适合初学者复盘参考。]]></description><category></category></item><item><title><![CDATA[关于python爬虫中，bs4 网页拼接的练习题，]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/168659228</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/168659228</guid><author>Aaronqihang</author><pubDate>Wed, 21 Oct 2026 17:54:47 +0800</pubDate><description><![CDATA[本文通过三个实战案例，详细演示了使用BeautifulSoup处理网页链接拼接的常见场景：基础链接拼接、图片src路径处理及含/与不含斜杠的相对路径问题。通过手敲练习，新手可掌握如何判断完整链接与相对路径，并正确使用基础域名进行拼接，有效解决爬虫中的链接解析难题。]]></description><category></category></item><item><title><![CDATA[关于bs4中：find/find_all select/select_one 用法概述；]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/168338048</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/168338048</guid><author>Aaronqihang</author><pubDate>Sun, 18 Oct 2026 14:09:18 +0800</pubDate><description><![CDATA[BeautifulSoup4 提供两套元素查找方式：基于标签属性的 find/find_all 与基于 CSS 选择器的 select/select_one。前者适合精准匹配标签名与属性，后者擅长处理多层嵌套结构。二者返回值对应一致：单个元素或列表，均支持链式调用。使用时注意 class_ 写法、空值判断及标签对象调用限制，推荐根据场景选择：简单查用 find，批量取用 find_all，复杂层级用 select。]]></description><category></category></item><item><title><![CDATA[python爬豆瓣Top250并保存到csv]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/168031083</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/168031083</guid><author>Aaronqihang</author><pubDate>Thu, 15 Oct 2026 22:54:52 +0800</pubDate><description><![CDATA[【代码】python爬豆瓣Top250并保存到csv。]]></description><category></category></item><item><title><![CDATA[自学python100天--第十八天：面对对象基础]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/142187401</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/142187401</guid><author>Aaronqihang</author><pubDate>Thu, 12 Sep 2024 22:35:21 +0800</pubDate><description><![CDATA[理解面对对象基础、类和对象、添加和获取对象属性、魔法方法；]]></description><category></category></item><item><title><![CDATA[自学python100天--第十七天：文件操作]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/142035428</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/142035428</guid><author>Aaronqihang</author><pubDate>Sun, 08 Sep 2024 23:44:28 +0800</pubDate><description><![CDATA[了解文件操作的绝对路径和相对路径、使用open（）打开文件进行文件的读（read）写（write）、知道单个文件的备份，和批量文件的备份、知道 r+，w+，a+的基础操作；]]></description><category></category></item><item><title><![CDATA[自学python100天--第十六天：for循环语句基础学习]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/142006207</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/142006207</guid><author>Aaronqihang</author><pubDate>Sat, 07 Sep 2024 23:12:38 +0800</pubDate><description><![CDATA[了解for循环语法格式、迭代、基本写法、两种结束语句的区别；]]></description><category></category></item><item><title><![CDATA[自学python100天--第十五天：if分支语句习题]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/141970152</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/141970152</guid><author>Aaronqihang</author><pubDate>Fri, 06 Sep 2024 22:00:51 +0800</pubDate><description><![CDATA[自学python100天--第十五天：if分支语句习题]]></description><category></category></item><item><title><![CDATA[自学python100天--第十四天：分支语句]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/141946085</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/141946085</guid><author>Aaronqihang</author><pubDate>Thu, 05 Sep 2024 23:29:55 +0800</pubDate><description><![CDATA[了解分支语句的流程、语法标准规范、循环嵌套写法；]]></description><category></category></item><item><title><![CDATA[自学python100天--第十三天：输入输出&运算符]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/141903730</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/141903730</guid><author>Aaronqihang</author><pubDate>Wed, 04 Sep 2024 20:52:15 +0800</pubDate><description><![CDATA[学会使用输入输出函数、了解并使用eval（）进行字符串类型转换、三种格式化输出基本操作、理解各种运算符写法：赋值运算、复合赋值运算、比较运算、逻辑运算；]]></description><category></category></item><item><title><![CDATA[自学python100天--第十二天：变量&数据类型]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/141831694</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/141831694</guid><author>Aaronqihang</author><pubDate>Tue, 03 Sep 2024 00:18:03 +0800</pubDate><description><![CDATA[了解变量名称的规则、各个类型的数据表达式和特点、数据类型之间的转换；]]></description><category></category></item><item><title><![CDATA[自学python100天--第十一天：三器一闭基本操作]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/141824382</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/141824382</guid><author>Aaronqihang</author><pubDate>Mon, 02 Sep 2024 19:57:37 +0800</pubDate><description><![CDATA[三器一闭基本操作]]></description><category></category></item><item><title><![CDATA[自学python100天--第十天：函数进阶--高阶函数]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/141782470</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/141782470</guid><author>Aaronqihang</author><pubDate>Sun, 01 Sep 2024 12:11:07 +0800</pubDate><description><![CDATA[学习目标：学习高阶函数：gloab函数使用方法，map、filter、sorted；了解阶乘方法，以及斐波那契数列和匿名函数；]]></description><category></category></item><item><title><![CDATA[自学python100天--第九天：函数入门]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/141758804</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/141758804</guid><author>Aaronqihang</author><pubDate>Sat, 31 Aug 2024 21:16:22 +0800</pubDate><description><![CDATA[学习目标：学习函数入门基础知识，了解并掌握：函数的作用、定义函数、调用函数、函数参数、函数返回值]]></description><category></category></item><item><title><![CDATA[自学python100天--第八天：字典&序列基本操作]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/141730374</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/141730374</guid><author>Aaronqihang</author><pubDate>Sat, 31 Aug 2024 01:05:25 +0800</pubDate><description><![CDATA[python]]></description><category></category></item><item><title><![CDATA[自学python100天--第七天：列表&元祖&集合]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/141691239</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/141691239</guid><author>Aaronqihang</author><pubDate>Fri, 30 Aug 2024 00:06:21 +0800</pubDate><description><![CDATA[学习列表的：增、删、改、查基本操作，以及列表&元祖&集合各自的特性以及基础用法；‘’’列表的索引:   默认从 0 开始列表的特性：   可变的数据类型‘’’]]></description><category></category></item><item><title><![CDATA[自学python100天--第六天：字符串操作]]></title><link>https://blog.youkuaiyun.com/Aaronqihang/article/details/141637216</link><guid>https://blog.youkuaiyun.com/Aaronqihang/article/details/141637216</guid><author>Aaronqihang</author><pubDate>Wed, 28 Aug 2024 20:58:11 +0800</pubDate><description><![CDATA[学习python中字符串的基础操作，掌握字符串的：切片、替换、查找、添加、删除等。]]></description><category></category></item></channel></rss>