<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[pyhui的技术博客]]></title><description><![CDATA[从后端开发到编程教育]]></description><link>https://blog.youkuaiyun.com/ifubing</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; ifubing]]></copyright><item><title><![CDATA[列表切片操作]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/169459525</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/169459525</guid><author>ifubing</author><pubDate>Thu, 29 Oct 2026 15:57:17 +0800</pubDate><description><![CDATA[作用：获取数据的内存编号，可以用来判断两个变量是不是指向同一个数据。
✅ 核心规则：取头不取尾（包含起始位置，不包含结束位置）
输出：
2. 负下标切片

输出：
3. 正下标、负下标混合切片

输出：
4. 从头切片（起始下标省略，默认从0开始）

输出：
5. 切到末尾（结束下标省略，一直取到最后）

输出：
✨ 切片简写小结

从头切：起始下标不写 
切到尾：结束下标不写 
从头到尾全部截取：头尾都不写 


二、带步长的切片
步长：每隔几个元素取一个，默认步长=1
输出：
步长为负数：从右向左切片
]]></description><category></category></item><item><title><![CDATA[七层与四层网络传输模型]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/169361294</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/169361294</guid><author>ifubing</author><pubDate>Wed, 28 Oct 2026 15:47:01 +0800</pubDate><description><![CDATA[七层模型四层模型。]]></description><category></category></item><item><title><![CDATA[列表相关训练]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/169245144</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/169245144</guid><author>ifubing</author><pubDate>Tue, 27 Oct 2026 10:48:04 +0800</pubDate><description><![CDATA[需求：录入6个整数存入列表，先输出原始列表；最后把原始列表反转输出。需求：循环录入5个成绩存入列表，自动计算一共有多少个成绩、最高分、最低分。需求：列表A = [1,3,5]，列表B = [2,4,6]版本C：整理成markdown表格，方便直接打印试卷。② 删除最后一个元素，并打印被删掉的元素。需求：使用while循环遍历列表。，逐个打印里面每一个元素。① 删除第一个“香蕉”③ 删除下标为1的元素。]]></description><category></category></item><item><title><![CDATA[Python 列表 list 学习笔记]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/168767925</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/168767925</guid><author>ifubing</author><pubDate>Thu, 22 Oct 2026 15:53:19 +0800</pubDate><description><![CDATA[append：加整体；extend：拆开加；insert：指定位置插remove：按值删；pop：按下标删，可以拿到删掉的数据修改：依靠下标直接赋值index查下标，count统计次数，in判断是否存在sort是排序，reverse只是翻转顺序。]]></description><category></category></item><item><title><![CDATA[循环结构复习 while循环]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/168537912</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/168537912</guid><author>ifubing</author><pubDate>Tue, 20 Oct 2026 11:24:22 +0800</pubDate><description><![CDATA[while循环for循环。]]></description><category></category></item><item><title><![CDATA[python复习 单路二路多路分支]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/168022031</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/168022031</guid><author>ifubing</author><pubDate>Thu, 15 Oct 2026 15:40:39 +0800</pubDate><description><![CDATA[类型特点单路if条件成立才执行，不成立什么都不做if else两种情况，一定会执行一段多种情况，从上往下依次判断分支嵌套在if/else内部再写分支，靠缩进区分层次。]]></description><category></category></item><item><title><![CDATA[python复习2 运算符大全]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/167894496</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/167894496</guid><author>ifubing</author><pubDate>Wed, 14 Oct 2026 11:13:23 +0800</pubDate><description><![CDATA[除法/，得到小数，哪怕整除也是小数除法取整//,得到结果的整数部分（不会四舍五入，只存留整数部分）除法取余%，得到余数，余数一定是整数。]]></description><category></category></item><item><title><![CDATA[python编程总复习 顺序，分支，循环结构]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/167787762</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/167787762</guid><author>ifubing</author><pubDate>Tue, 13 Oct 2026 11:01:28 +0800</pubDate><description><![CDATA[1 双引号print(s1)# 2 单引号print(s2)# 3,三引号print(s3)# 带单引号的字符串s4 = "人们都管他叫'大聪明'"print(s4)# 带双引号的内容s5 = '他很机智，人称"小诸葛"'print(s5)# 即带单引号，又带双引号的内容s6 = """这是一本'神奇的书',"小诸葛"看完后感觉收获不少"""print(s6)]]></description><category></category></item><item><title><![CDATA[贵妃减肥日记]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/167377301</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/167377301</guid><author>ifubing</author><pubDate>Fri, 09 Oct 2026 11:43:40 +0800</pubDate><description><![CDATA[贵妃减肥贵妃体重200斤她决定要减肥她通过运动的方式来减肥假设她每天运动可以减重0.8斤统计他的减肥经历看到他第几天是多重，运动后是多重输出格式为：今天是减肥的第几天运动前体重是。。。运动后体重是。。。]]></description><category></category></item><item><title><![CDATA[while循环的基本用法]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/167375633</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/167375633</guid><author>ifubing</author><pubDate>Fri, 09 Oct 2026 11:25:18 +0800</pubDate><description><![CDATA[定义循环变量while 循环变量的判断:只要条件成立就会进入执行循环体循环变量要发生变化。]]></description><category></category></item><item><title><![CDATA[试卷打印 for循环演练]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/167370363</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/167370363</guid><author>ifubing</author><pubDate>Fri, 09 Oct 2026 10:41:22 +0800</pubDate><description><![CDATA[当前有5份试卷但是班上有30个同学需要把剩下的试卷都打印出来。]]></description><category></category></item><item><title><![CDATA[格式化字符串输出 format方法的使用 按位置传数据]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/167369189</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/167369189</guid><author>ifubing</author><pubDate>Fri, 09 Oct 2026 10:34:57 +0800</pubDate><description><![CDATA[c = msg.format(第一个括号的数的剧，第二个括号的数据)将来我们会用数据填入到这个{}中。格式化字符串输出笔记。格式中用{}进行占位。]]></description><category></category></item><item><title><![CDATA[fort循环的用法]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/167276389</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/167276389</guid><author>ifubing</author><pubDate>Thu, 08 Oct 2026 15:54:05 +0800</pubDate><description><![CDATA[【代码】fort循环的用法。]]></description><category></category></item><item><title><![CDATA[分支结构演练]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/167275354</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/167275354</guid><author>ifubing</author><pubDate>Thu, 08 Oct 2026 15:24:57 +0800</pubDate><description><![CDATA[1、（单路分支）需求：接收用户输入一个整数，如果该数是负数，则打印“负数”，其余情况不输出任何内容。2、（二路分支）需求：接收用户输入用户名，判断输入内容是否等于"admin"，相等打印“登录成功”，不相等打印“用户名错误”。3、（多路分支）需求：接收用户输入1~3的整数。输入1打印“跑步”；输入2打印“跳绳”；输入3打印“游泳”；其他数字打印“没有该运动项目”。4、（分支嵌套）需求：输入一个整数，先判断数字是否大于0；大于0的前提下，再判断能否被5整除并输出对应提示；]]></description><category></category></item><item><title><![CDATA[安装pygame ce]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/167275689</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/167275689</guid><author>ifubing</author><pubDate>Thu, 08 Oct 2026 15:23:37 +0800</pubDate><description><![CDATA[安装pygame ce。]]></description><category></category></item><item><title><![CDATA[分支嵌套结构示例]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/166690123</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/166690123</guid><author>ifubing</author><pubDate>Sat, 26 Sep 2026 15:46:39 +0800</pubDate><description><![CDATA[【代码】分支嵌套结构示例。]]></description><category></category></item><item><title><![CDATA[分支嵌套结构 武汉地铁安全保卫]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/166689832</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/166689832</guid><author>ifubing</author><pubDate>Sat, 26 Sep 2026 15:18:13 +0800</pubDate><description><![CDATA[如果温度大于等于37.3度。如果余额大于1.8元会开门。否则会提示，余额不足请充值。从地铁是要进行温度测量的。当我们走到自动闸门的时候。]]></description><category></category></item><item><title><![CDATA[python分支结构复习]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/166689728</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/166689728</guid><author>ifubing</author><pubDate>Sat, 26 Sep 2026 14:57:16 +0800</pubDate><description><![CDATA[python分支结构复习。]]></description><category></category></item><item><title><![CDATA[多路分支结构]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/166594954</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/166594954</guid><author>ifubing</author><pubDate>Thu, 24 Sep 2026 15:46:06 +0800</pubDate><description><![CDATA[根据不同条件会进行不同的处理场景经典案例就是成绩评级优，良，中，差。]]></description><category></category></item><item><title><![CDATA[二路分支演练 判断是否成年]]></title><link>https://blog.youkuaiyun.com/ifubing/article/details/166463646</link><guid>https://blog.youkuaiyun.com/ifubing/article/details/166463646</guid><author>ifubing</author><pubDate>Wed, 23 Sep 2026 10:29:57 +0800</pubDate><description><![CDATA[接收用户的年龄判断是否成年。]]></description><category></category></item></channel></rss>