<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Luo_Ra的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/Luo_Ra</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Luo_Ra]]></copyright><item><title><![CDATA[python UnicodeDecodeError]]></title><link>https://blog.youkuaiyun.com/Luo_Ra/article/details/129819994</link><guid>https://blog.youkuaiyun.com/Luo_Ra/article/details/129819994</guid><author>Luo_Ra</author><pubDate>Tue, 28 Mar 2023 17:11:35 +0800</pubDate><description><![CDATA[python pandas read_csv UnicodeDecodeError]]></description><category></category></item><item><title><![CDATA[python 常用快捷键]]></title><link>https://blog.youkuaiyun.com/Luo_Ra/article/details/129816334</link><guid>https://blog.youkuaiyun.com/Luo_Ra/article/details/129816334</guid><author>Luo_Ra</author><pubDate>Tue, 28 Mar 2023 15:07:17 +0800</pubDate><description><![CDATA[python 快捷键]]></description><category></category></item><item><title><![CDATA[MySQL 分组下钻求占比（自己随便取的）]]></title><link>https://blog.youkuaiyun.com/Luo_Ra/article/details/129578438</link><guid>https://blog.youkuaiyun.com/Luo_Ra/article/details/129578438</guid><author>Luo_Ra</author><pubDate>Thu, 16 Mar 2023 08:48:05 +0800</pubDate><description><![CDATA[MySQL 面试题 分组后求占比]]></description><category></category></item><item><title><![CDATA[python 列表生成器]]></title><link>https://blog.youkuaiyun.com/Luo_Ra/article/details/129495956</link><guid>https://blog.youkuaiyun.com/Luo_Ra/article/details/129495956</guid><author>Luo_Ra</author><pubDate>Mon, 13 Mar 2023 15:47:18 +0800</pubDate><description><![CDATA[python 列表生成器（基础）]]></description><category></category></item><item><title><![CDATA[MySQL 分类下钻统合（自己随便取的）]]></title><link>https://blog.youkuaiyun.com/Luo_Ra/article/details/129484413</link><guid>https://blog.youkuaiyun.com/Luo_Ra/article/details/129484413</guid><author>Luo_Ra</author><pubDate>Mon, 13 Mar 2023 10:12:02 +0800</pubDate><description><![CDATA[MySQL 分类明细汇总 ]]></description><category></category></item><item><title><![CDATA[python 水仙花数 map函数]]></title><link>https://blog.youkuaiyun.com/Luo_Ra/article/details/129439578</link><guid>https://blog.youkuaiyun.com/Luo_Ra/article/details/129439578</guid><author>Luo_Ra</author><pubDate>Fri, 10 Mar 2023 11:39:23 +0800</pubDate><description><![CDATA[python 水仙花数 map函数 ]]></description><category></category></item><item><title><![CDATA[python numpy 求两点的距离 (推荐系统）]]></title><link>https://blog.youkuaiyun.com/Luo_Ra/article/details/129439070</link><guid>https://blog.youkuaiyun.com/Luo_Ra/article/details/129439070</guid><author>Luo_Ra</author><pubDate>Fri, 10 Mar 2023 11:22:03 +0800</pubDate><description><![CDATA[python numpy 推荐系统 两点距离]]></description><category></category></item><item><title><![CDATA[Python 循环和分支结构]]></title><link>https://blog.youkuaiyun.com/Luo_Ra/article/details/129301237</link><guid>https://blog.youkuaiyun.com/Luo_Ra/article/details/129301237</guid><author>Luo_Ra</author><pubDate>Thu, 02 Mar 2023 15:07:15 +0800</pubDate><description><![CDATA[python 循环]]></description><category></category></item><item><title><![CDATA[Python 字符串-确定字符串中的奇数位和偶数位]]></title><link>https://blog.youkuaiyun.com/Luo_Ra/article/details/129261942</link><guid>https://blog.youkuaiyun.com/Luo_Ra/article/details/129261942</guid><author>Luo_Ra</author><pubDate>Wed, 01 Mar 2023 10:38:52 +0800</pubDate><description><![CDATA[pyhton 字符串]]></description><category></category></item><item><title><![CDATA[Python 字符串-查找字符串中某字符的索引]]></title><link>https://blog.youkuaiyun.com/Luo_Ra/article/details/129276312</link><guid>https://blog.youkuaiyun.com/Luo_Ra/article/details/129276312</guid><author>Luo_Ra</author><pubDate>Wed, 01 Mar 2023 10:38:05 +0800</pubDate><description><![CDATA[python 字符串 索引]]></description><category></category></item><item><title><![CDATA[MySQL经典练习50题]]></title><link>https://blog.youkuaiyun.com/Luo_Ra/article/details/124166059</link><guid>https://blog.youkuaiyun.com/Luo_Ra/article/details/124166059</guid><author>Luo_Ra</author><pubDate>Fri, 27 May 2022 09:46:09 +0800</pubDate><description><![CDATA[Server version: 8.0.15 MySQL

练习数据

表1：course（cid[课程id]，cname[课程名称]，tid[教师id]）-- 课程信息表

表2：sc（sid[学生id]，cid[课程id]，score[课程分数]）-- 成绩表

表3：student（sid[学生id]，sname[学生姓名]，sage[学生年龄]，ssex[学生性别]）学生信息表

表4：teacher（tid[老师id]，tname[老师姓名]）-- 老师信息表

数据准备

以下数据准备也可直接复]]></description><category></category></item></channel></rss>