员工 worker = new 普通员工();
...
做衣服() {
worker.做衣袖();
worker.做衣身();
T恤衫 t = worker.获得T恤衫();
...
}
员工 worker = new 普通员工();
...
做衣服() {
worker.做衣袖();
worker.做衣身();
T恤衫 t = worker.获得T恤衫();
...
}
转载于:https://my.oschina.net/u/698379/blog/1924481