如何在golang中使用逗号分隔值打印切片

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/zBcFAh7YoVnfmt.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

// define slice

args := []string{"one", "two", "three"}

// prepend single quote, perform joins, append single quote

output := "'"+strings.Join(args, `','`) + `'`

fmt.Println(output)

去游乐场： https: //play.golang.org/p/pKu0sO_QsGo

Answer 2

JSON 生成一个很好的转义 csv

https://go.dev/play/p/Qgh2WgOvAUW

data := []string{"1", "2", "A", "B", "Hack\"er"}

b, _ := json.Marshal(data)

fmt.Printf("%v", string(b)) // ["1", "2", "A", "B", "Hack\"er"]

Join如果字符串包含双引号，则仅使用会创建损坏的值。

Answer 3

data := []string{"1",  "2"}

var result string 

if len(data) > 0 {

    result = "\"" + strings.Join(data, "\",\"") + "\""

}

fmt.Println(result)