[7.9.1 内部类注册](7.9.1%E5%86%85%E9%83%A8%E7%B1%BB%E6%B3%A8%E5%86%8C.md) [7.9.2 定义成员属性](7.9.2%E5%AE%9A%E4%B9%89%E6%88%90%E5%91%98%E5%B1%9E%E6%80%A7.md) [7.9.3 定义成员方法](7.9.3%E5%AE%9A%E4%B9%89%E6%88%90%E5%91%98%E6%96%B9%E6%B3%95.md) [7.9.4 定义常量](7.9.4%E5%AE%9A%E4%B9%89%E5%B8%B8%E9%87%8F.md) [7.9.5 类的实例化](7.9.5%E7%B1%BB%E7%9A%84%E5%AE%9E%E4%BE%8B%E5%8C%96.md)