Go 设计模式

设计模式的原则

1. 单一职责原则
2. 开闭原则
3. 里氏代换原则
4. 依赖倒转原则
5. 接口隔离原则
6. 合成复用原则
7. 迪米特法则

创造性模型

简单工厂模式

package main

type Fruit interface {
	Show()
}

type AppleFactory struct {
	Fruit
}
type BalanceFactory struct {
	Fruit
}
type Factory struct {
	
}

func (f *Factory)CreateFactory(kind string) Fruit {
	switch kind {
	case "apple":
		return new(AppleFactory)
	case "balance":
		return  new(BalanceFactory)
        
	}
	
	return nil
}

func main()  {
    f := new(Factory)
	apple := f.CreateFactory("apple")
	apple.Show()
}

抽象工厂