详解Golang Map中的key为什么是无序的

func mapiterinit(t *maptype, h *hmap, it *hiter) {
 
	// decide where to start
	r := uintptr(fastrand())
	if h.B > 31-bucketCntBits {
		r += uintptr(fastrand()) << 31
	}
	
	mapiternext(it)
}

package main

import "fmt"

func main() {

	noSortMap := map[int]int{
		1: 1,
		2: 2,
		3: 3,
		4: 4,
		5: 5,
		6: 6,
	}

	for k, v := range noSortMap {

		fmt.Println("key: ", k, "value: ", v)
	}

}

package main

import (
	"fmt"
	"sort"
)

func main() {

	noSortMap := map[int]int{
		1: 1,
		2: 2,
		3: 3,
		4: 4,
		5: 5,
		6: 6,
	}

	var noSortSlice []int
	for k, v := range noSortMap {

		noSortSlice = append(noSortSlice, k)
		fmt.Println("key: ", k, "value: ", v)
	}

	fmt.Println(noSortSlice)
	// 排序
	sort.Ints(noSortSlice)
	sortSlice := noSortSlice
	fmt.Println(sortSlice)
	for _, k := range sortSlice {

		fmt.Println("key: ", k, "value: ", noSortMap[k])
	}
	
}