~~~ /* Decorator 装饰模式: 动态地给一个对象添加一些额外的职责,就增加功能来说,装饰模式比生成子类更为灵活。 个人想法:注意装饰器内部维护一个对象,所有装饰器的子类在操作时,必须调用父类的函数,一直从下到上再到下的感觉 作者: HCLAC 日期: 20170308 */ package decorator import ( "fmt" ) type person struct { Name string } func (p *person) show() { if p == nil { return } fmt.Println("姓名:", p.Name) } type AbsstractPerson interface { show() } type Decorator struct { AbsstractPerson } func (d *Decorator) SetDecorator(component AbsstractPerson) { if d == nil { return } d.AbsstractPerson = component } func (d *Decorator) show() { if d == nil { return } if d.AbsstractPerson != nil { d.AbsstractPerson.show() } } type TShirts struct { Decorator } func (t *TShirts) show() { if t == nil { return } t.Decorator.show() fmt.Println("T恤") } type BigTrouser struct { Decorator } func (b *BigTrouser) show() { if b == nil { return } b.Decorator.show() fmt.Println("大裤衩") } type Sneakers struct { Decorator } func (b *Sneakers) show() { if b == nil { return } b.Decorator.show() fmt.Println("破球鞋") } ~~~