golang go中的示例列表结构支持

Posted 2021-05-24

package main

import "fmt"

type list struct {
	items map[int]int
}

func newlist() list {
	return list{make(map[int]int)}
}

func (l list) append(val int) {
	l.items[len(l.items)] = val
}

func (l list) removelast() {
	delete(l.items, len(l.items)-1)
}


func main() {
	f := newlist()
	f.append(4)
	f.append(2)
	f.removelast()
  fmt.Println(f)
}

golang 允许你在go中嵌入一个结构中的地图

package main

import (
	"fmt"
	"runtime"
)

type record struct {
	m map[string]int
}




func main() {
	practice := record{m:make(map[string]int)}
	practice.m["foo"] = 2
	fmt.Println(practice.m)
	runtime.GC()
}