Javascript 从我的json响应中访问一组特定的值？

我正在尝试使用for..in循环访问“Event”中的描述键/值，但目前不完全确定如何实现这一点。首先，我使用for..in并将其注销，这将返回响应中的所有顶级条目，我现在如何深入并选择Event.description？我首先认为是数据[prop].Event.description，但事实并非如此。我应该使用一个普通的for循环，然后在这个循环的内部使用for

这是我目前的代码：

$(document).ready(function() {

    var data = {
        "status": "ok",
        "code": "200",
        "message": "event details",
        "data": [{
            "Event": {
                "id": "1",
                "name": "Sample Event Number 1",
                "description": "Sample Event Number 4 Description ....",
                "event_date": "2012-05-31 00:00:00",
                "Band": [{
                    "id": "1",
                    "name": "Support #1",
                    "BandsEvent": {
                        "id": "7",
                        "band_id": "2",
                        "event_id": "8",
                        "created": "2012-05-23 15:53:56",
                        "modified": "2012-05-23 15:53:56"
                    }},
                {
                    "id": "2",
                    "name": "Support #2",
                    "BandsEvent": {
                        "id": "8",
                        "band_id": "1",
                        "event_id": "8",
                        "created": "2012-05-23 15:53:57",
                        "modified": "2012-05-23 15:53:57"
                    }}]
            }},
        {
            "Event": {
                "id": "2",
                "name": "Sample Event Number 2",
                "description": "Sample Event Number 4 Description ....",
                "event_date": "2012-05-31 00:00:00",
                "Band": [{
                    "id": "2",
                    "name": "Another Crazy Band",
                    "BandsEvent": {
                        "id": "3",
                        "band_id": "2",
                        "event_id": "8",
                        "created": "2012-05-23 15:53:56",
                        "modified": "2012-05-23 15:53:56"
                    }},
                {
                    "id": "4",
                    "name": "The Band",
                    "BandsEvent": {
                        "id": "8",
                        "band_id": "1",
                        "event_id": "8",
                        "created": "2012-05-23 15:53:57",
                        "modified": "2012-05-23 15:53:57"
                    }}]

            }}]
    }


    var prop;

    for (prop in data) {
        console.log( data[prop] );
        // data.Event.description 
    }

});​

---

这应该满足您的要求：

for (var i = 0; i < data.data.length; i++) {
    console.log(data.data[i].Event.description);        
}

---

我建议存储数组并在上面循环。：

for（var events=data.data，I=0，n=events.length；I
for (var i = 0; i < data.data.length; i++) {
    console.log(data.data[i].Event.description + " has the following bands:"); 
    for (var j = 0; j < data.data[i].Event.Band.length; j++) {  
        console.log(data.data[i].Event.Band[j].name); 
    }       
}