有一个JSON响应，在多个集合中有这么多乐器（>100+）。如何最好地匹配每个项目集item_list值与item_number和item_info的精确总和或串联。
验证在以下求和或级联时失败：
* match each response[*].item_list = $response[*].item_number + "--" + $response[*].item_info个

[{
   "item_number":01,
   "item_info": "Piano",
   "item_list": "01--Piano"
 },
 {
   "item_number":02,
   "item_info": "Mrudanga",
   "item_list": "02--Mrudanga"
 },
 {
   "item_number":03,
   "item_info": "Guitar",
   "item_list": "03--Guitar"
 },
 {
   "item_number":04,
   "item_info": "Flute",
   "item_list": "04--Flute"
 },
 ...
 ...
 ...
 ...
 ...
]

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