golang 切片 接口_Golang 切片之 interface 接口类型

$arr = [

[

"a" => 1,

"b" => 2,

],

[

"c" => 1,

"d" => 2,

],

[

"e" => 1,

"f" => 2,

],

];

这个 $arr 就是一个数组，它是由几个数组对象组成，PHP 数组可以这样非常灵活随意的赋值，数字，字符串，类等等，什么类型的结构都可以直接这样表示。

package main

import (

"encoding/json"

"fmt"

)

func main() {

npc1 := make(map[string]string)

npc1["id"] = "2212"

npc1["type"] = "23"

npc1["effect"] = "23"

npc1["localX"] = "44"

npc1["localY"] = "55"

npc1["pathId"] = "23"

npc1["shape"] = "0.8"

npc2 := make(map[string]string)

npc2["id"] = "2212"

npc2["type"] = "23"

npc2["effect"] = "23"

npc2["localX"] = "44"

npc2["localY"] = "55"

npc2["pathId"] = "23"

npc2["shape"] = "0.8"

var npcList = make([]interface{}, 0)

npcList = append(npcList, npc1, npc2)

out, _ := json.Marshal(npcList)

fmt.Print(string(out))

/**

[{"effect":"23","id":"2212","localX":"44","localY":"55","pathId":"23","shape":"0.8","type":"23"},{"effect":"23","id":"2212","localX":"44","localY":"55","pathId

":"23","shape":"0.8","type":"23"}]

**/

}在 Golang 中，这里面的数组相当于 map，那么如何表示这样的结构呢？

看以下示例，有两个 map 类型数据，分别是 npc1 和 npc2，通过初始化一个切片保存 interface 类型数据，将 map 类型数据追究到切片，然后通过 json 序列化后得到的结果看，符合上面 PHP 例子的数据格式。代码如下：