将下载的所有东西放在 './downloads' 子目录下

[FHYQ-Dong]

在git clone 您的代码到本地后如果直接运行，会在当前目录下按每个课程一个目录的方式创建n个目录。这比较影响当前目录的整洁，也不方便编写 .gitignore 文件。希望您能将下载的所有文件统一保存在某个子目录下，而不对当前目录做过多修改。

[erbanku]

Not all users save files in the downloads folder. You can move the learn.py file to the folder you prefer and then run it to achieve your goal without changing the code.
A pull request is not needed and may be disruptive for this.
Please reply if you have any other questions concerned.