老师if后面的括号是必须要加上吗？

那个文档不复制粘贴的话 我们手打一直成功不了的

a = [,]
((a))
b = [,]
((a))
a += b
(a)
((a))

为什么地址会是一样的啊

请输入一共4名员工的薪资(输入Q或q结束) 3000
请输入一共4名员工的薪资(输入Q或q结束) -1000
请输入一共4名员工的薪资(输入Q或q结束) 5000
请输入一共4名员工的薪资(输入Q或q结束) 4000

您已全部录入4名员工的薪资
录入薪资 [3000.0, 5000.0, 4000.0]
平均薪资3000.0

输入-1000结果不对

CondaHTTPError: HTTP 403 FORBIDDEN for url <https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64/python-3.10.10-h966fe2a_2.conda>

Elapsed: 00:00.143846

An HTTP error occurred when trying to retrieve this URL.

HTTP errors are often intermittent, and a simple retry will get you on your way.

CondaHTTPError: HTTP 403 FORBIDDEN for url <https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64/python-3.10.10-h966fe2a_2.conda>

Elapsed: 00:00.143846

An HTTP error occurred when trying to retrieve this URL.

HTTP errors are often intermittent, and a simple retry will get you on your way.

CondaHTTPError: HTTP 403 FORBIDDEN for url <https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64/sqlite-3.45.3-h2bbff1b_0.conda>

Elapsed: 00:00.045832

An HTTP error occurred when trying to retrieve this URL.

HTTP errors are often intermittent, and a simple retry will get you on your way.

CondaHTTPError: HTTP 403 FORBIDDEN for url <https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64/tk-8.6.14-h0416ee5_0.conda>

Elapsed: 00:00.426064

An HTTP error occurred when trying to retrieve this URL.

HTTP errors are often intermittent, and a simple retry will get you on your way.

CondaHTTPError: HTTP 403 FORBIDDEN for url <https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64/setuptools-75.8.0-py310haa95532_0.conda>

Elapsed: 00:00.539640

An HTTP error occurred when trying to retrieve this URL.

HTTP errors are often intermittent, and a simple retry will get you on your way.

CondaHTTPError: HTTP 403 FORBIDDEN for url <https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64/pip-25.0-py310haa95532_0.conda>

Elapsed: 00:01.662794

An HTTP error occurred when trying to retrieve this URL.

HTTP errors are often intermittent, and a simple retry will get you on your way.

CondaHTTPError: HTTP 403 FORBIDDEN for url <https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64/openssl-1.1.1w-h2bbff1b_0.conda>

Elapsed: 00:02.753177

An HTTP error occurred when trying to retrieve this URL.

HTTP errors are often intermittent, and a simple retry will get you on your way.

 创建虚拟环境报错，请问题是什么原因导致的，上网看说有可能是镜像源导致的，但是我看下面的视频也切换成清华镜像源的

channel URLs : https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64

                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/noarch

                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r/win-64

                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r/noarch

                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2/win-64

                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2/noarch

conda create -n Flask-project_env python=3.10.10

创建虚拟环境的后面不指定Python版本的话，会怎么样？

栈帧一调用完就消失了。global a、4是函数中的属性，是存在于堆中，不会消失。那么一旦调用了a就永远指向4了。对吧？如果是这样堆里面的100会删除吗?我感觉会删除（没人对应它了）

老师请问id（1）返回的值长度15位，转换为二进制后是47位。64位系统地址长度是不是应该64？返回值为47长度的原因是前面的0省去了吗？

两点距离公式怎么来的 为什么是平方和开方

0b101 为撒是5呢  

那按这个说的话0b110是6 吗

老师请问您那个鱼缸PPT怎么做的？比较感兴趣

视频中是怎么做到不复制粘贴直接将语句重复的

老师在视频里说的系列解包，包是什么意思

所以堆里面的关于a,b的数据是什么时候存在的，为啥可以直接在栈中得到地址