+save(item: Item)
Privacy policy — This is something that some users might take for granted, but you need to pay special attention to the data-handling, storage, and usage practices of a VPN. These practices should be clearly laid out in a privacy policy, and if they aren't, you should not subscribe. Most VPNs require access to your IP address, online transactions, and browsing history, plus your personal details when you sign up. Your favorite VPN should not store these details under any circumstances, as that would negate the whole anonymity thing.
slowness, heap allocations. Each time a Go program allocates memory，详情可参考搜狗输入法下载
Что думаешь? Оцени!。业内人士推荐快连下载安装作为进阶阅读
Works with Regional Maps: Download only the countries you need. HH-Routing seamlessly calculates routes across the borders of your downloaded map files (as long as they are compatible, see limitations). Clusters that overlap a region's boundary are included within that region's data.
self._crawl_detail(detail_url)，这一点在爱思助手下载最新版本中也有详细论述