Commit Graph

2 Commits

Author SHA1 Message Date
xx 61d11ecc4d day10-用instanceof关键字进行类型判断 2026-07-27 16:17:06 +08:00
xx b9ea2c1322 day10-对象的向上向下转型代码实现 2026-07-27 15:57:00 +08:00