[案例一：电脑模型（OO实现）](%E6%A1%88%E4%BE%8B%E4%B8%80%EF%BC%9A%E7%94%B5%E8%84%91%E6%A8%A1%E5%9E%8B%EF%BC%88OO%E5%AE%9E%E7%8E%B0%EF%BC%89.md) [案例二：银行转账（OO实现）](%E6%A1%88%E4%BE%8B%E4%BA%8C%EF%BC%9A%E9%93%B6%E8%A1%8C%E8%BD%AC%E8%B4%A6%EF%BC%88OO%E5%AE%9E%E7%8E%B0%EF%BC%89.md)