如何在Golang中将地图解压缩为字符串格式的关键字参数？

Question

In Python, to format a string with a dictionary, one can simply do:

geopoint = {
  'latitude': 41.123,
  'longitude':71.091
}

print('{latitude} {longitude}'.format(**geopoint))

The output will be 41.123 71.091. How do I achieve the same keyword unpacking of maps for string formatting in Go?

EDIT: Sorry if this was unclear in the question, but what I want to do is, like in Python, provide the keys for the values inside the format string.

Answer 1

I recommend using a struct to have your fields and then add method String.

code: https://play.golang.org/p/ine_9GwK5o-

package main

import (
    "fmt"
)


type Point struct {
   latitude float64
   longitude float64
}

func (p Point) String() string {
   return fmt.Sprintf("%f %f", p.latitude, p.longitude)
}

func main() {

    geoP:= Point{latitude:41.123, longitude:71.091}

    fmt.Println(geoP)
}