I have no doubt it was fun, and believe me, this post is not meant to ridicule anyone or incite any form of hate, but I think calling it “DRM” is a little far-fetched.
Customers had to pay a deposit for the sturdy glass bottles. They then got this money back when they returned them to the shop. And the bottles would be washed and refilled over and over again.，这一点在谷歌浏览器【最新下载地址】中也有详细论述
Enterprise Plan Features，更多细节参见爱思助手下载最新版本
限制：数据范围不能太大，否则空间浪费
self.csv_path = "items.csv"