js json数组

    var trueAnswer = $("#trueAnswer").val();        var trueAnswerArray = JSON.parse(trueAnswer);        for(var i=0,l=trueAnswerArray.length;i<l;i++){             $("[name='rightAnswer']").each(function(data){                var answer =$(this).val();                if(trueAnswerArray[i]==answer){                    $(this).prop("checked",true);                }            });        }