[好的抽象](%E7%AC%AC%E5%85%AD%E7%AB%A0%E5%8F%AF%E4%BB%A5%E5%B7%A5%E4%BD%9C%E7%9A%84%E7%B1%BB/%E5%A5%BD%E7%9A%84%E6%8A%BD%E8%B1%A1.md) [良好的类接口](%E7%AC%AC%E5%85%AD%E7%AB%A0%E5%8F%AF%E4%BB%A5%E5%B7%A5%E4%BD%9C%E7%9A%84%E7%B1%BB/%E8%89%AF%E5%A5%BD%E7%9A%84%E7%B1%BB%E6%8E%A5%E5%8F%A3.md) [有关设计和实现的问题](%E7%AC%AC%E5%85%AD%E7%AB%A0%E5%8F%AF%E4%BB%A5%E5%B7%A5%E4%BD%9C%E7%9A%84%E7%B1%BB/%E6%9C%89%E5%85%B3%E8%AE%BE%E8%AE%A1%E5%92%8C%E5%AE%9E%E7%8E%B0%E7%9A%84%E9%97%AE%E9%A2%98.md) [构造函数](%E7%AC%AC%E5%85%AD%E7%AB%A0%E5%8F%AF%E4%BB%A5%E5%B7%A5%E4%BD%9C%E7%9A%84%E7%B1%BB/%E6%9E%84%E9%80%A0%E5%87%BD%E6%95%B0.md)