js两个数组对象通过关系键值对应，向一个数组对象中追加一个键值对

 iconList:[

          {deviceClassCode: "DD",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/dd44bab2-2386-4742-8ce8-675d02079fc1DD.png"},

          {deviceClassCode: "CD",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/e7aa2312-c664-40aa-8cab-20903b638e35CD.png"},

          {deviceClassCode: "HJ",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/d13a9bd8-e8ca-4b73-8d07-1582fe60dce9HJ.png"},

          {deviceClassCode: "HWTC",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/8cd6c6e8-cba4-42f9-8a32-237a79e9c1f9HWTC.png"},

          {deviceClassCode: "JK",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/2a94c6ee-7270-4041-8213-ee377ed15313JK.png"},

          {deviceClassCode: "KRQT",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/6f46394f-0074-4fc9-8917-6ce3745dec4dKRQT.png"},

          {deviceClassCode: "MC",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/b7df37a5-bfab-41c1-96aa-1e1204176702MC.png"},

          {deviceClassCode: "SB",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/2d44e53e-7b49-42f7-984d-977088b4d72fSB.png"},

          {deviceClassCode: "SH",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/d9a85da5-2314-4708-8ac4-3606f08089b1SH.png"},

          {deviceClassCode: "SJ",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/7afef8b4-4d55-4821-b075-c1729df14b8eSJ.png"},

          {deviceClassCode: "YW",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/4856d733-6063-4b95-9231-628e7ef3c25cYW.png"},

          {deviceClassCode: "YX",url:"https://fsk-oss.oss-cn-shanghai.aliyuncs.com/image/3e3c8a88-d6a8-493d-85bd-07c585d0f057YX.png"},

        ],  //设备icon列表

 

 

代码实现：双循环遍历2个数组对象，

 if(deviceList.length>0){

          deviceList.map(item=>{

            this.data.iconList.forEach(itemIcon=>{

                if(item.deviceClassCode==itemIcon.deviceClassCode){

                  item.url=itemIcon.url

                }

            })

          })

        }