how to compact Json in Struct Golang

package questionnaire

import (
	"encoding/json"
)

type Items []Item

type CreateData struct {
	Items []Item
}

type Item struct {
	Id        enter code herestring `json:"id"        required:"true"`
	CompCd    string `json:"compCd"    required:"true"`
	OrgCd     string `json:"orgCd"`
	QstnId    string `json:"qstnId"    required:"true"`
	QstnIdSeq string `json:"qstnIdSeq" required:"true"`
	CustId    string `json:"custId"`
	AnsDts    string `json:"ansDts"    required:"true"`
	AnsRout   string `json:"ansRout"   required:"true"`
	QCd01     string `json:"qCd01"`
	QKey01    string `json:"qKey01"`
	QStc01    string `json:"qStc01"`
	QCat01    string `json:"qCat01"`
	Pont01    string `json:"pont01"`
	PCat01    string `json:"pCat01"`
	Comt01    string `json:"comt01"`
    QCd02     string `json:"qCd02"`
	QKey02    string `json:"qKey02"`
	QStc02    string `json:"qStc02"`
	QCat02    string `json:"qCat02"`
	Pont02    string `json:"pont02"`
	PCat02    string `json:"pCat02"`
	Comt02    string `json:"comt02"`
    .
    .
    .
	QCd50     string `json:"qCd50"`
	QKey50    string `json:"qKey50"`
	QStc50    string `json:"qStc50"`
	QCat50    string `json:"qCat50"`
	Pont50    string `json:"pont50"`
	PCat50    string `json:"pCat50"`
	Comt50    string `json:"comt50"
}

I'm newbie. I just learn go language a few day before..
My problem: How to compact this Item struct block. If i write from QCd01 to QCd50 this code can run but so bad!
Sorry I'm not good at English.

I copied and pasted the code in your comment. It was missing the ending } to finish the json string. Also, you need a struct to tie the items map to. Here is a working playground link.

EDIT: I didn't realize there would be more than one "items", which I should have assumed given the plural name. Here is an updated playground link that takes care of that.

https://play.golang.org/p/5T2C6KrVOD