golang 解析json数据

package main

import (
    jsoniter "github.com/json-iterator/go"
)

func String2Bytes(data string) []byte {
    return []byte(data)
}

func main() {

    s := `{"code":200,"data":[[851,532],[874,529],[895,525],[915,520],[934,514],[951,507],[967,498],[982,488],[995,477],[1006,465],[101
6,452],[1024,437],[1032,422],[1032,422],[930,429],[834,439],[741,451],[654,466],[570,483],[491,504],[416,526],[346,551],[280,579],[219,609],[162,
642],[110,678],[110,678],[157,625],[205,577],[254,533],[304,493],[356,457],[408,426],[462,399],[517,376],[572,358],[629,343],[687,333],[747,328]]
,"msg":"success"}`

    var result map[string]interface{}
    var json = jsoniter.ConfigCompatibleWithStandardLibrary
    err := json.Unmarshal(String2Bytes(s), &result)
    if err != nil {
        println(err.Error())
    }

    println(result["data"].([]interface{})[0].([]interface{})[0].(float64))

}