douyanzan9145 2017-02-21 22:37
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Golang创建JSON数组

I try to create json array

type Data struct {
Veggies Vegetables
array   array } type array map[string] []int
func main(){
vegetables := Vegetables{}
vegetables["Carrots"] = 21
n:= array{}
n  ["array"]= [] int {1, 1 ,1}
d := Data{ vegetables,n}

json.MarshalIndent(d, "", " ")}

please explain why not see the array?

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  • dongzhabo2796 2017-02-21 23:06
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    The code above doesn't compile, but also has a few problems with the types. I'd avoid names like Array which could be confused for language keywords, and forgo the custom types. Maybe something simpler like this?

    https://play.golang.org/p/OBw4gI2Zkm

    type Data struct {
        Veggies map[string]int
        Ints    []int
    }
    ...
    j, err := json.MarshalIndent(d, "", " ")
    

    The docs for the json package are good, you need to read them.

    https://golang.org/pkg/encoding/json/#Marshal

    For Go, this book is also great as an introduction to the language:

    http://www.gopl.io/

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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