var json = {"name":["1111","222"],"sex":["男","女"],"age":["1111","2222"],"uNo":["111","2222"]};//从list表单序列化取出来的格式
　　　　　
                    var param = []; //定义数组
                    for(var i = 0; i < json.name.length;i++) {//这里的length有bug，回头再改

                       name= json.name[i];
                       sex = json.sex[i];
                       age = json.age[i];
                       uNo = json.uNo[i];
                       param.push({name:name,sex:sex,age:age,uNo:uNo});//追加到数组中
                    }
                    var data = http://www.mamicode.com/JSON.stringify(param,null,4);
                    alert(data);

[
    {
        "name": "1111",
        "sex": "男",
        "age": "1111",
        "uNo": "111"
    },
    {
        "name": "222",
        "sex": "女",
        "age": "2222",
        "uNo": "2222"
    }
]

var data2 = "{"+‘"data"‘+":"+ data+"}";
alert(data2);