如何提取數(shù)組中的字段，然后添加新的字段，獲取數(shù)據(jù)如下：vardata=[{"id":"1","name":"華為","data":"25u6s8f545d3"},{"id":"2","name":"小米","data":"cd58de9d3c5d"},];我想獲得的數(shù)據(jù)格式如下：vardata=[{"id":"1","name":"華為","data":"25u6s8f545d3","mac":"25:u6:s8:f5:45:d3"},{"id":"2","name":"小米","data":"cd58de9d3c5d","mac":"cd:58:de:9d:3c:5d"},];我現(xiàn)在方法如下：for(vari=0;i