JS操作文件，添加数据

我这里有一个文件，内容如下：

 {Item:[{month:'03',items:[{name:'买插座',money:'50',date:'2015-3-1'},{name:'买**',money:'200.5',date:'2015-3-2'}]},{month:'04',items:[{name:'买插座1',money:'50',date:'2015-4-1'},{name:'买**1',money:'200.5',date:'2015-4-2'}]}]}

我想在items后面添加数据，数据格式和上面一样，请问怎么弄，谢谢啦！

这是json格式，一层层剥离出来就行了

 var a={Item:[{month:'03',items:[{name:'买插座',money:'50',date:'2015-3-1'},{name:'买**',money:'200.5',date:'2015-3-2'}]},{month:'04',items:[{name:'买插座1',money:'50',date:'2015-4-1'},{name:'买**1',money:'200.5',date:'2015-4-2'}]}]};
 var item = a['Item'];
 for(var i=0;i<item.length;i++){
    item[i].items.push({
            name:'新插座'+i,
                money:'1000',
                date:'2015-5-1'
        })
 }

好像不行哎，这是我的代码，你帮我看看

            aso=new ActiveXObject("Scripting.FileSystemObject");
            reader=aso.OpenTextFile(path,ForReading);
            content=reader.ReadLine();
            var json=eval('(' + content + ')');
            var obj=json.Item;
            var flag=true;
            for(var i=0;i<obj.length;i++){
                if(obj[i].month==month){
                    //月份已存在，直接追加在末尾
                    var data="{name:'"+Mincontent+"',money:'"+money+"',date:'"+date+"'}";
                    obj[i].items.push(data);
                    flag=false;
                    break;
                }
            }

亲测可用，给分结贴吧。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>test</title>
<script type="text/javascript">
//json格式化参见： http://www.bejson.com/
var d = 
{
    Item: [
        {
            month: '03',
            items: [
                {
                    name: '买插座',
                    money: '50',
                    date: '2015-3-1'
                },
                {
                    name: '买**',
                    money: '200.5',
                    date: '2015-3-2'
                }
            ]
        },
        {
            month: '04',
            items: [
                {
                    name: '买插座1',
                    money: '50',
                    date: '2015-4-1'
                },
                {
                    name: '买**1',
                    money: '200.5',
                    date: '2015-4-2'
                }
            ]
        }
    ]
};
    var newItem = {
            month: '05',
            items: [
                {
                    name: '买插座5月',
                    money: '50',
                    date: '2015-5-1'
                },
                {
                    name: '买**1',
                    money: '200.5',
                    date: '2015-5-2'
                }
            ]
        };
d.Item.push(newItem);
//注：
//1. JSON.stringify作用为json转字符串; 必须在IE8+,Chrome,Firefox上执行，IE6,7必须引用js;
//2. JSON.parse(jsonstr)作用为字符串转json;
var str= JSON.stringify(d);
var strNewItem = JSON.stringify(d.Item[2]);
var jsonObj = JSON.parse(strNewItem);
alert( "添加后的json:\n"+str +"\n\njson中的新元素："+strNewItem +"\n\n新元素的对应字符串又转回json后的属性值(month):"+jsonObj.month);
</script>
</head>
<body>
</body>
</html>