Go 实现设计模式之策略模式

package main

import "fmt"

type SortStrategyer interface {
    sort(list []int) []int
}

type BubbleSortStrategy struct {
}

func (b *BubbleSortStrategy) sort(list []int) []int {
    fmt.Println("do bubble sort")
    return list
}

type QuickSortStrategy struct {
}

func (b *QuickSortStrategy) sort(list []int) []int {
    fmt.Println("do quick sort")
    return list
}

type Sorter struct {
    strategy SortStrategyer
}

func (s *Sorter) doSort(list []int) []int {
    return s.strategy.sort(list)
}

func main() {
    testList := []int{4, 5, 3}
    sort1 := Sorter{strategy: &BubbleSortStrategy{}}
    sort1.doSort(testList)
    sort2 := Sorter{strategy: &QuickSortStrategy{}}
    sort2.doSort(testList)
    sort1.strategy = &QuickSortStrategy{}
    sort1.doSort(testList)
}