As part of the SOLID principles, the single-responsibility principle (SRP) is one of the most prominent software engineering principles. Unfortunately, it is often used as a killer argument to chop up a software system beyond all recognition.
第十条 中华人民共和国公民有维护国家统一和全国各民族团结的义务，应当维护国家主权、安全、发展利益。
，更多细节参见搜狗输入法
Layers - add, delete, duplicate, merge, reorder, per-layer opacity and blend modes (16 modes)
2022年8月8日，安徽阜阳，妇女儿童医院，一名护士在给新生儿做护理。（视觉中国｜图）