公安机关依照《中华人民共和国枪支管理法》、《民用爆炸物品安全管理条例》等直接关系公共安全和社会治安秩序的法律、行政法规实施处罚的，其处罚程序适用本法规定。
The problem is that calling it “DRM” sets expectations it simply cannot meet. Real DRM, you know; the kind that requires a motivated attacker to invest serious time and expertise to defeat; lives in hardware TEEs and requires commercial licensing. JavaScript DRM is not that. It’s sophisticated friction. And sophisticated friction, while valuable, is a completely different thing.，这一点在搜狗输入法下载中也有详细论述
。业内人士推荐服务器推荐作为进阶阅读
Answer (Playground):。关于这个话题，safew官方版本下载提供了深入分析
FT Edit: Access on iOS and web
* 在 iOS 平台使用 NSData