[单例模式](%E5%8D%95%E4%BE%8B%E6%A8%A1%E5%BC%8F.md) [简单工厂模式](%E7%AE%80%E5%8D%95%E5%B7%A5%E5%8E%82%E6%A8%A1%E5%BC%8F.md) [抽象工厂模式](%E6%8A%BD%E8%B1%A1%E5%B7%A5%E5%8E%82%E6%A8%A1%E5%BC%8F.md) [观察者模式](%E8%A7%82%E5%AF%9F%E8%80%85%E6%A8%A1%E5%BC%8F.md) [策略模式](%E7%AD%96%E7%95%A5%E6%A8%A1%E5%BC%8F.md) [注册模式](%E6%B3%A8%E5%86%8C%E6%A8%A1%E5%BC%8F.md) [适配器模式](%E9%80%82%E9%85%8D%E5%99%A8%E6%A8%A1%E5%BC%8F.md)