如何获取json对象中的特定值？

Question

{
    "id": "some",
    "title": "some",
    "author": {
        "name": "\u95eb\u9759"
    },
    "link": [{
        "@attributes": {
            "href": "http://localhost/",
            "rel": "some"
        }
    },
    {
        "@attributes": {
            "href": "http://localhost/",
            "rel": "some"
        }
    },
    {
        "@attributes": {
            "href": "http://localhost/",
            "rel": "some"
        }
    }]
}

如上，对于服务器返回的json数据，如何获取Link中第一个@attributes的href值？

Answer 1

var req = { ...你的返回对象... };
var first_href_val = req.link[0]['@attributes'];