{
    "ItemX": {"id":"兑换","itemType":"类型","level":"等级","reward":"兑换可得"},
    "Items": [
        {"id":1,"itemType":23,"level":"S","reward":"2100020001,50"},
        {"id":2,"itemType":23,"level":"A","reward":"2100020001,30"},
        {"id":3,"itemType":23,"level":"B","reward":"2100020001,15"}
    ]
}