结构体排序-接口应用

实现 sort 包的Interface接口，就可以快速排序。 接口的妙用

package main

import (
	"fmt"
	"math/rand"
	"sort"
)

type Hero struct {
	Name string
	Age int
}
type HeroSlice []Hero

func (H HeroSlice)Len()int{
	return len(H)
}

func (H HeroSlice)Less(i,j int)bool{
	return H[i].Age < H[j].Age
}

func (H HeroSlice)Swap(i,j int){
	temp :=  H[i]
	H[i] = H[j]
	H[j] = temp
}

func main(){

	var Her HeroSlice
	for i:=0;i<10;i++{
		h := Hero{
			Name: fmt.Sprintf("英雄~%d",i),
			Age: i * rand.Intn(100),
		}
		fmt.Println(h)
		Her = append(Her,h)
	}
	//fmt.Println(Her)
	sort.Sort(Her)
	fmt.Println("排序后...")
	for _,v := range Her{
		fmt.Println(v)
	}
}