string - 如何在golang中用逗号分隔值打印Slice

Question

输入:

    // a slice of type string.
    data := []string{"one", "two", "three"}

预期输出:

["one","two","three"]

我尝试使用这些格式说明符
https://play.golang.org/p/zBcFAh7YoVn

fmt.Printf("%+q\n", data)
fmt.Printf("%#q\n", data)
fmt.Printf("%q\n", data)
// using strings.Join()
result := strings.Join(data, ",")
fmt.Println(result)

输出:
所有值都没有逗号，

["one" "two" "three"]
[`one` `two` `three`]
["one" "two" "three"]
one,two,three

Answer 1

不知道这会有所帮助，但也只是增加我的想法!

package main

import "fmt"

func main() {

    data := []string{"one", "two", "three"}
    //fmt.Println(data)
    for index, j := range data {
        if index == 0 { //If the value is first one 
            fmt.Printf("[ '%v', ", j)
        } else if len(data) == index+1 { // If the value is the last one 
            fmt.Printf("'%v' ]", j)
        } else {
            fmt.Printf(" '%v', ", j)   // for all ( middle ) values 
        }

    }
}

输出

[ 'one',  'two', 'three' ]

PlayGroundLink