sorting functions _ golang

Sometimes we'll want to sort a collection by something other than its natural order. For example, suppose we wanted to sort strings by their length instead of alphabetically. Here's an example of custom sorts in Go

package main

import (
    "fmt"
    "sort"
)

type ByLength []string

func (s ByLength) Len() int {
    return len(s)
}

func (s ByLength) Swap(i, j int) {
    s[i], s[j] = s[j], s[i]
}

func (s ByLength) Less(i, j int) bool {
    return len(s[i]) < len(s[j])
}

func main() {
    fruits := []string{"peach", "banana", "kiwi"}
    sort.Sort(ByLength(fruits))
    fmt.Println(fruits)
}
[kiwi peach banana]

总结 :

  1 : ...

本文来自:博客园

感谢作者:jackkiexu

查看原文:sorting functions _ golang

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