装饰器模式\decorator\Father.class
..........\.........\P1.class
..........\.........\P2.class
..........\.........\Project.class
..........\.........\Son.class
..........\.........\Test.class
..........\Father.java
..........\P1.java
..........\P2.java
..........\Project.java
..........\Son.java
..........\Test.java
..........\decorator
装饰器模式