<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[andyfeng0509的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/andyfeng0509</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; andyfeng0509]]></copyright><item><title><![CDATA[【python练习】仅用三行代码就实现简易的用户名密码验证器]]></title><link>https://blog.youkuaiyun.com/andyfeng0509/article/details/138761158</link><guid>https://blog.youkuaiyun.com/andyfeng0509/article/details/138761158</guid><author>andyfeng0509</author><pubDate>Tue, 14 May 2024 08:22:01 +0800</pubDate><description><![CDATA[name = input('请输入用户名') #请输入用户名
password = input('输入密码') #输入用户密码
print(name == 'admin' and password == '123456') # 只有当用户名和密码都正确的时候，才会输出true正确]]></description><category></category></item><item><title><![CDATA[【python练习】巧用** 符 轻松实现幂运算 还能开次方]]></title><link>https://blog.youkuaiyun.com/andyfeng0509/article/details/138750181</link><guid>https://blog.youkuaiyun.com/andyfeng0509/article/details/138750181</guid><author>andyfeng0509</author><pubDate>Mon, 13 May 2024 08:29:10 +0800</pubDate><description><![CDATA[number = input('请输入一个数字')  #请输入一个数字
number = int(number) #把数字从字符型转化成整数型
result = number ** 0.5 #把number 用幂运算符** 来逆运算，赋值给result，这里开方写0.5，开几次方就写1/?，非常简单
print(result) #输出结果 这里输入的结果却是float型]]></description><category></category></item><item><title><![CDATA[【python练习】如何判断一个数是否是偶数]]></title><link>https://blog.youkuaiyun.com/andyfeng0509/article/details/138747836</link><guid>https://blog.youkuaiyun.com/andyfeng0509/article/details/138747836</guid><author>andyfeng0509</author><pubDate>Sun, 12 May 2024 10:41:14 +0800</pubDate><description><![CDATA[【python练习】如何判断一个数是否是偶数]]></description><category></category></item><item><title><![CDATA[【前段】电商设计必须要避开的3大坑]]></title><link>https://blog.youkuaiyun.com/andyfeng0509/article/details/138657167</link><guid>https://blog.youkuaiyun.com/andyfeng0509/article/details/138657167</guid><author>andyfeng0509</author><pubDate>Fri, 10 May 2024 12:28:00 +0800</pubDate><description><![CDATA[我们在做前端设计，电商网页设计的时候不得不遇到很多问题，尤其是下面三个大坑，遇到一定要绕开，不让怎么赔都知道。]]></description><category></category></item><item><title><![CDATA[CDA 数据分析认证考试模拟题（一）]]></title><link>https://blog.youkuaiyun.com/andyfeng0509/article/details/138561212</link><guid>https://blog.youkuaiyun.com/andyfeng0509/article/details/138561212</guid><author>andyfeng0509</author><pubDate>Wed, 08 May 2024 14:28:33 +0800</pubDate><description><![CDATA[CDA 数据分析认证考试模拟题]]></description><category></category></item><item><title><![CDATA[CDA二级教材：商业策略数据分析（试读版）]]></title><link>https://blog.youkuaiyun.com/andyfeng0509/article/details/138523181</link><guid>https://blog.youkuaiyun.com/andyfeng0509/article/details/138523181</guid><author>andyfeng0509</author><pubDate>Tue, 07 May 2024 10:45:25 +0800</pubDate><description><![CDATA[CDA LEVEL Ⅱ考试教材 ，考试百宝书]]></description><category></category></item><item><title><![CDATA[【刷题】CDA数据分析 python 练习卷 题库3（附答案）]]></title><link>https://blog.youkuaiyun.com/andyfeng0509/article/details/138496597</link><guid>https://blog.youkuaiyun.com/andyfeng0509/article/details/138496597</guid><author>andyfeng0509</author><pubDate>Tue, 07 May 2024 09:30:00 +0800</pubDate><description><![CDATA[给出如下代码s="abcdefghijklmn"print(s[1:10:3])上述代码的输出结果是
A.behk
B.adgj
C.beh
D.adg
答案是C]]></description><category></category></item><item><title><![CDATA[【刷题】CDA数据分析 python 练习卷题库2（附答案）]]></title><link>https://blog.youkuaiyun.com/andyfeng0509/article/details/138476301</link><guid>https://blog.youkuaiyun.com/andyfeng0509/article/details/138476301</guid><author>andyfeng0509</author><pubDate>Mon, 06 May 2024 09:30:00 +0800</pubDate><description><![CDATA[50.PYTHON中cross_val_score类是实现交叉验证的语法，以下说法错误的是()
A.交叉验证的运行时间并不多，因此可以用于超大型数据分析中;
B.cross_val_score可以用于分层、留一法、分组法等验证;
C.交叉验证的作用只能用于判断数据是否过拟合,
D.cross_val_score可以用于召回率和f1的验证:]]></description><category></category></item><item><title><![CDATA[【刷题】CDA数据分析 python 练习卷 一 （附答案）]]></title><link>https://blog.youkuaiyun.com/andyfeng0509/article/details/138435469</link><guid>https://blog.youkuaiyun.com/andyfeng0509/article/details/138435469</guid><author>andyfeng0509</author><pubDate>Sat, 04 May 2024 11:43:49 +0800</pubDate><description><![CDATA[数据清洗的方法包括()
A.缺失值处理
B.噪声数据清除
C.一致性检查
D.重复数据记录处理

python不支持的数据类型有:
A.char
B.int
C.float
D.list]]></description><category></category></item><item><title><![CDATA[CDA Level Ⅰ 2023认证考试大纲]]></title><link>https://blog.youkuaiyun.com/andyfeng0509/article/details/138414922</link><guid>https://blog.youkuaiyun.com/andyfeng0509/article/details/138414922</guid><author>andyfeng0509</author><pubDate>Fri, 03 May 2024 13:52:11 +0800</pubDate><description><![CDATA[CDA Level Ⅰ ——人人皆需的职场数据思维与通用数据技能]]></description><category></category></item></channel></rss>