装饰者模式

import "fmt"

type Component interface {
   Operate()
}
type Component1 struct {
}
func(this *Component1)Operate(){
   fmt.Println("c1 operate...")
}
type Decorate interface {
   Component
   Do()
}
type Decorate1 struct{
   //Component1
   C Component

}
func (this *Decorate1) Do(){
   fmt.Println("发生了---装饰者模式")
}
func (this *Decorate1)Operate(){
   this.Do()
   this.C.Operate()
}

测试代码：

func TestDecorate(t *testing.T){
   decorate1:=inital.Decorate1{}
   decorate1.C=&inital.Component1{}
   decorate1.Do()
   decorate1.Operate()
}