我有一个字符串vartraingIds="${triningIdArray}";//${triningIdArray}thisvaluegettingfromserveralert(traingIds)//alerts[1,2]vartype=typeof(traingIds)alert(type)////alertsString现在我想把它转换成数组以便我可以迭代我试过了vartrainindIdArray=traingIds.split(',');$.each(trainindIdArray,function(index,value){alert(index+':'+value);