1:JSON对象转换为JSON

JSON.stringify(e.currentTarget.dataset.index)

2:JSON数据按为JSON对象

var data = '{'+
            '"name":"iphone plus",'+
            '"price":"666",'+
            '"description":"手机中的战斗机",'+
            '"youhuijia":"555",'+
            '"sum":"333",'+
            '"image":['+
                '{'+
                    '"small":"../images/s11.jpg",'+
                    '"big":"../images/s11.jpg"'+
                '},'+
                '{'+
                    '"small":"../images/s12.jpg",'+
                    '"big":"../images/s12.jpg"'+
                '},'+
                '{'+
                    '"small":"../images/s13.jpg",'+
                    '"big":"../images/s13.jpg"'+
                '}'+
            ']'+
        '}';
console.log(data); 
var jsonObj1 = JSON.parse(data);  //使用JSON.parse() 将JSON字符串转为JS对象;
console.log(jsonObj1);
var jsonObj2 = eval('(' + data + ')'); //使用eval() 将JSON字符串转为JS对象；
console.log(jsonObj2);

3:数组的追加,思路:把newarray数组增加到guanggao数组后面后赋值给guanggao,生成一个新的数组,注意是追加到某数组后面不是替换原数组

that.data.guanggao = newarray.concat(that.data.guanggao);